Harnessing Backlash: How Leaders Can Benefit from Antagonizing Foreign Actors

Abstract Leaders nearly always claim that their diplomatic campaigns are intended to attract foreign support. However, many diplomatic campaigns fail spectacularly in this regard. While these events have largely been explained as diplomatic failures, I argue that alienating the apparent target of an international diplomatic campaign can be a deliberate strategy leaders use to win domestic support. Under certain conditions, a costly backlash from a foreign actor can be a credible signal that the leader shares the domestic audience's preferences. Therefore, by intentionally provoking a backlash from a valuable foreign actor, leaders can exchange foreign condemnation for an increase in domestic support. I support this argument with evidence from Netanyahu's 2015 speech to the US Congress. I show that, as expected by this theoretical framework, Netanyahu's efforts resulted in a significant backlash among US Democrats and a corresponding increase of support among right-wing Israelis, a crucial constituency for his upcoming election.

International public diplomacy is generally understood as an attempt to increase foreign goodwill and cooperation.However, many diplomatic efforts dramatically fail to win foreign amity, and some even have the opposite effect, producing a negative backlash.In 2015, Israeli Prime Minister Benjamin Netanyahu traveled to the United States to oppose a multilateral agreement with Iran, only to infuriate the Obama administration and polarize US support for Israel.On his first foreign trip as president in 2017, Donald Trump caught his own national security team by surprise by openly antagonizing North Atlantic Treaty Organization (NATO) leaders, chastising them for failing to meet their payment obligations and calling into question the principle of collective defense.UK Prime Minister Theresa May took aggressive bargaining positions when negotiating Brexit that were seen as absurd and alienated the international partners with whom she needed to strike a deal.
This presents an important puzzle: why do leaders so often appear to deliberately and publicly provoke foreign negotiating partners when we think that the goal of diplomacy is to attract foreign support?These examples have largely been labeled as diplomatic failures, but I argue that alienating the nominal target of an international diplomacy campaign can be a purposeful strategy used to win support from segments of a domestic audience.I refer to this as "strategic antagonism."When a key segment of a leader's domestic audience has policy preferences that oppose those of a foreign target, the leader's willingness to pay a cost in terms of foreign support serves as a credible signal that the speaker is committed to the preferred policy of the domestic constituency.Viewed this way, international diplomacy provides leaders with a powerful and littleunderstood tool for achieving their domestic goals.Consequently, the conflicting incentives leaders face when crafting their diplomatic strategies can drive uncooperative international outcomes.
After discussing the theoretical mechanism and outlining the conditions necessary for a leader to benefit from strategic antagonism, I apply the logic to the case of Israeli Prime Minister Netanyahu's provocative speech to the US Congress in 2015.To form a majority coalition, Netanyahu needed to win support from far-right Israeli voters, whose preferences were antithetical to the US Democrats Netanyahu alienated with his speech.Israeli reliance on US diplomatic and economic aid meant that a US backlash against Israel could be costly to Netanyahu.As a result, he could use this backlash to credibly signal his commitment to the ideals and policies of his ongoing electoral campaign.
The high volume of media coverage, public attention, and public opinion surveys surrounding this case provide a unique opportunity to identify observable patterns that are consistent with strategic antagonism.I compare responses from individuals surveyed just before and just after Netanyahu's visit to show that the speech had the predicted effect on public opinion within key subsets of both the Israeli and US publics.Specifically, Netanyahu's speech reduced support from US Democrats and Americans who approved of Obama, polarizing US support for Israel.At the same time, the speech increased support for a Netanyahu-led coalition among far-right Israeli voters.Although risky, Netanyahu's strategic antagonism appears to have paid large dividends, as he won an extremely tight election the following week and was successful in forming a right-wing coalition government.
This article makes several key contributions to the study of international diplomacy.An important body of work applies the logic of a two-level game to show how domestic audiences can shape the credibility of information being conveyed to an international counterpart (Fearon 1994;Putnam 1988).However, when diplomatic actions are played out on a global stage, the key audience with whom leaders are trying to resolve information asymmetries is sometimes their own domestic public, rather than foreign states.Just as democratic leaders may benefit in international negotiations from potential costs imposed by their domestic audience, leaders can benefit in their domestic sphere when a foreign actor imposes a cost on them, though the mechanism is different.In cases where leaders prioritize communicating with their domestic audience, they may be less likely to successfully cooperate with international partners.
This article also examines a new way of thinking about principal-agent relationships in international politics.The fact that a leader's incentive to maintain power is sometimes at odds with the state's overall welfare generates puzzling foreign policy outcomes, such as an increase in the probability that a state will initiate conflict (Downs and Rocke 1994;Mueller 1970).I present a new mechanism through which agency loss can result in noncooperative international outcomes that is distinct from the logic of diversionary war. 1 Rather than generating an immediate military threat that evokes nationalism and unites domestic support, leaders can use strategic antagonism to pay a cost in terms of future international cooperation in order to signal commitment to a policy preferred by a specific domestic constituency.
In addition to explaining what appear to be grossly botched diplomatic campaigns by highly strategic and informed actors, this argument provides a new lens through which to examine the broader goals and outcomes of diplomacy.The key insight is that diplomacy played out in public is powerful for leaders because it reaches multiple audiences who have a variety of predictable reactions.In this way, what first appears as bad diplomacy may, in fact, be good politics.

The Goal of Public Diplomacy
The theory of strategic antagonism offers a new explanation for the time and resources leaders invest in diplomatic activity.The study of diplomacy has largely focused on states' ability to use "cheap talk"-which does not have any inherent costs for the speaker-to communicate with or manipulate their international negotiating partners, in spite of strong incentives to misrepresent their interests.Recent scholarship argues that diplomacy can affect international outcomes when it is played out in front of the leader's domestic audience due to that audience's ability to punish the leader if they are caught in a lie.If leaders rely on public support to stay in office, then leaders will be more likely to keep their word when their commitments are made in public view (Fearon 1994).Additionally, the fear of creating audience costs for international negotiating partners can motivate leaders to keep negotiations private (Kurizaki 2007), and the potential for a partner to leak damaging negotiations to a public can increase the credibility of private negotiations (Yarhi-Milo 2013).This literature sees the domestic audience as primarily a (sometimes helpful) constraint on the government in its negotiations with foreign actors.
Flipping this logic on its head, I argue that the domestic audience is regularly a leader's primary target when engaging in international diplomacy, while the foreign actor serves as the tool.Rather than focusing on how the prospect of paying a domestic cost can signal credibility to international actors, I explore how paying a cost in foreign cooperation can signal credibility to domestic constituencies.By incorporating a broader set of potential audiences for diplomatic outcomes, this perspective expands our ability to dissect the complicated goals and implications of diplomatic activity.
I also contribute to research that examines when leaders have domestic incentives to enact aggressive foreign policies.For example, the "rally round the flag" effect can create a diversionary incentive and reward leaders for provoking international crises (Mueller 1970).Additionally, leaders may act aggressively toward international audiences to produce a sense of gratification by imposing retribution for perceived provocations (Lickel et al. 2006), as well as to increase perceptions of their competence by fostering a masculine image (Huddy and Terkildsen 1993).Strategic antagonism differs from these theories by relying on an informational mechanism to reveal the leader's credibility to a specific constituency.
A separate line of literature investigates diplomacy that is explicitly targeted at shaping the opinions of foreign publics through both "cheap talk" public diplomacy and "public diplomacy through action."This research develops taxonomies for a wide range of public diplomacy strategies and explores variation in approaches between countries (Cull 2008;Gilboa 2008).The literature also theorizes when public diplomacy will be effective in attracting foreign publics, drawing from theories of public relations, frame cascades in US politics, and social psychology (Entman 2008;Goldsmith and Horiuchi 2009;Goldsmith, Horiuchi, and Matush 2021;Sheafer and Gabay 2009).These studies are unified by their assumption that public diplomacy is intended to increase positive foreign opinion for the state or the state's preferred policies (Gregory 2008;Nye 1990).While diplomats nearly always claim to be seeking attraction, leaders also commonly elicit negative reactions from foreign publics.To understand this phenomenon, it is necessary to consider alternative goals for actions that look like public diplomacy but have the opposite effect.Not all instances of strategic antagonism will look like public diplomacy, but some actions that look like public diplomacy can be better understood as strategic antagonism.
Focusing on public antagonism shifts the question away from who can influence a foreign state and toward the question of who would want to.While the limiting factor in traditional public diplomacy research is the ability to provoke a desired reaction from a foreign actor, the crucial condition for when a leader will engage in strategic antagonism is whether they benefit from it.This is the question I address in the following section.

When Leaders Benefit from Strategic Antagonism
In order for a leader to engage in the risky strategy of antagonizing a foreign actor, the domestic benefit must make the gambit worthwhile.To identify the conditions when this is true, I adapt the logic of a signaling model.In this section, I discuss the structure and implications of the model conceptually.The model is presented formally in Online Appendix A.
I consider a scenario where the leader of a country is trying to win domestic support by convincing a key constituency (which I will call the "public") that they are more committed to their preferred policy than the opposition.The "public" may be the overall domestic constituency of the leader's country, or it may be a portion of that constituency or domestic political elite that are critical to a leader's political goals.This situation requires that the public be somewhat uncertain about the leader's ideal policy on a key issue.When seeking election, leaders have an incentive to say whatever will earn them public support, and observers often therefore question whether their words truly reflect the policies they will implement.Leaders thus go to great lengths to convince constituents that their platforms are genuine, especially on the key issues.While time in office reduces public uncertainty about a leader's preferences, the constantly shifting political environment ensures that incumbents continue to seek ways to credibly communicate their goals to their constituency.
I assume that leaders are able to elicit a costly, negative backlash from a foreign actor should they wish to do so. 2 The backlash may come from a variety of foreign actors, such as a leader, an international organization, or a public.A foreign backlash will be costly when the leader depends on that actor to achieve their future foreign policy goals.There is a good reason that diplomacy is usually conducted delicately and with great attention to respectful prose.From negotiating complicated trade agreements, to achieving cooperation on tricky military maneuvers, to maintaining flows of foreign aid, achieving international goals depends on others' beliefs that states are trustworthy partners that share their goals.By taking aggressive stances that alienate foreign governments or their publics, leaders increase these actors' estimation that they are not on the same side of key issues, eroding future cooperation.
After observing a foreign backlash, if there is one, the domestic public chooses whether to support the leader or the opposition.Additionally, leaders lose public support after an election by implementing a policy that is significantly different from the one they campaigned on (Ashworth 2012).This support can be conceptualized in a number of ways.Most bluntly, it could be seen in terms of an election, where the incumbent remains in power only if they win a certain level of public support.Public support is also critical to political objectives outside of election cycles: in democratic settings, leaders need political capital to pass their policies, and in some institutions, a lack of support could trigger an election.Even in nondemocratic settings, leaders rely on domestic support from certain elite constituencies to maintain power (Weeks 2008).
The public wants to support whichever candidate has preferences closest to their own, and a costly foreign backlash can be a credible sign that the leader shares their preferences.Suppose, for example, that a crucial domestic constituency prefers a hardline or "hawkish" policy.That constituency may be unsure whether the leader is fully dedicated to the hardline policy or is instead willing to later settle for a compromise on a more moderate policy.In this case, invoking a foreign backlash, and paying the associated costs, can allow the leader to separate themselves from a leader who is less willing to hold firm on the issue. 3 I propose that leaders will be willing to provoke a costly foreign backlash when: (1) the domestic public have preferences that are misaligned with the foreign actor; and (2) the foreign backlash is sufficiently costly to be informative to the public but not so costly that it outweighs the domestic benefits.Both of these conditions are shaped by the characteristics of the foreign actor imposing the backlash.2 I expand on the scope conditions for this assumption later.
3 For a formal discussion of this equilibrium, see Online Appendix A. The model focuses on the leader's ability to convey information on their preferences, but a different interpretation could instead communicate the degree to which the politician is willing to compromise or stand firm on the policy in the future.In this view, a costly backlash could help the leader signal their level of commitment to the policy, separating themselves from less committed types.For example, two candidates may declare the same policy goal, but the voters may be uncertain whether the candidates are devoted enough to pay costs for continuing to support the policy if the political winds change in the future.

Misaligned Preferences
In order for strategic antagonism to succeed, the leader must provoke a backlash from a foreign actor that the domestic constituency views as being opposed to their goals on a key issue.Where the domestic public prefers a hawkish policy, the leader could shore up support by provoking a backlash from a dovish foreign actor. 4When the leader's domestic constituency observes a backlash from a foreign actor that is hostile to their policy goals, they can more clearly interpret the preferences being signaled by the leader.Importantly, the public must only have a belief about which side of the issue the foreign actor currently supports, a condition that is frequently met.In contrast to this rudimentary understanding of the foreign actor's preferences, the domestic public must make a more sophisticated evaluation of whether they believe their leader will actually follow through on a specific policy in the future, relative to other candidates.
The stylized example focuses on a leader signaling commitment to a hawkish security policy, but strategic antagonism can be applied to a broad range of policy spectrums.For example, a leader may alienate a hawkish foreign actor in order to signal a commitment to a more peaceful policy, or they may alienate an internationalist foreign actor in favor of an isolationist policy.In his high-profile speech at a NATO summit in May 2017, Trump openly provoked European leaders, spurning his more internationalist foreign policy advisors like Rex Tillerson and James Mattis, who urged him to take a more conciliatory tone (Glasser 2017).This antagonistic approach, recommended by White House aides Steve Bannon and Steven Miller, signaled Trump's recommitment to the "America First" agenda on which he campaigned. 5Strategic antagonism can also be used to signal preferences on economic policy questions.Theresa May's seemingly outrageous public demands of European negotiators during the Brexit debate can be understood as a costly signal to British constituencies and politicians committed to a hardline economic policy on Brexit. 6ne might question why a foreign actor with misaligned preferences would take the bait of the leader's provocation, knowing that a backlash could assist the leader to achieve their domestic goals.On this point, I adopt Hall's (2017) framework that distinguishes between responses to international provocation by the public and by political leaders.Since the media and other elites thrive on stoking public anger, leaders can often induce a genuine backlash from foreign publics by "wrongfully challenging or violating their values and goals, thereby eliciting outraged reactions" (Hall 2017, 3).Foreign leaders may better understand the incentives driving the antagonism.However, when the visiting leader is openly antagonistic toward the foreign leader's public stance on an issue, the foreign leader will face pressure to react negatively in order to maintain consistency, especially if their constituency expresses outrage to the provocation.In most cases, this domestic incentive will outweigh the strategic incentive to avoid bolstering the visiting leader's own domestic support.

Balancing the Costs and Benefits of Foreign Backlash
When engaging in strategic antagonism, leaders must calibrate the size of the backlash to balance the international costs against the domestic benefits.This is unlike traditional public diplomacy, where we would expect leaders to always try to maximize the shift in foreign sentiment, assumed to be positive.If the backlash is only trivially costly, the public may not update their beliefs on the leader's preferences.For example, if the US president alienated a minor power like Bolivia or Although Trump's voter base may not have held negative sentiment toward NATO as a specific institution before Trump took a stance on these issues, they did hold strong anti-internationalist preferences.NATO was pushing for stronger cooperation between members and was therefore known to have preferences that were misaligned with Trump's base.
Nepal, the costs to future international cooperation would be small, and the action may not send an informative signal about the president's preferences.However, strategic antagonism is also not a viable strategy when the costs of the backlash are too high.An extremely costly backlash that produces a severe loss in future cooperation from critical international players may permanently hogtie the leader and ultimately outweigh the domestic gains.
Although leaders likely face some uncertainty about how foreign actors will react to provocation, they have several tools to shape the size and scope of the backlash to suit their needs. 7First, leaders carefully choose their tone and topic in diplomatic statements.In this way, leaders stop short of challenging values or goals that are extremely sensitive or important to the foreign audience.Secondly, leaders can shape the cost of a backlash based on the position of the foreign actor they choose to alienate.The cost of a backlash will be larger when the foreign country is crucial to the leader's international agenda, either as a cooperative partner or a potential adversary.A backlash from an important strategic ally could risk losing their cooperation at a critical moment in the future.This could manifest in a number of ways: coming to the country's aid in case of conflict; permitting military exercises or use of bases; providing diplomatic support in international forums; or sustaining aid. 8In other cases, aggravating a particularly conflictual adversary could carry a high risk of increased tension and potential for conflict.
In addition to a foreign country, it might be an international organization or collection of countries that imposes the cost.Dutch Prime Minister Mark Rutte earned the nickname "Mr.No" for his openly antagonistic public stance against EU spending, most recently, regarding a large COVID-19 relief package in early 2021.As a result, some observers noted that the negative international response to his isolationist rhetoric would obstruct "efforts to effectively pursue national interests in the long term" (Molthof 2020).However, this also lent Rutte credibility among potential supporters during the Dutch elections in March 2021, where many voters supported decreased commitments to the EU. 9n interesting feature driving this balancing act is that, in some cases, the leader's domestic audience also suffers the cost of the backlash, but the politician can still be rewarded with increased domestic support.If the loss in the foreign actor's future cooperation is costly to the leader, then it is likely also costly to the constituency they represent.This is the price that the constituency must pay for the information about their leader's preferences.In other cases, the voters might find that the leader's strategic antagonism is not worth the price and punish the leader for alienating a valuable foreign ally, even if it produces a credible signal that the leader's preferences are aligned with their own.
Leaders are more likely to engage in strategic antagonism during times when there are high domestic benefits to signaling commitment to a constituency's preferences.This may be especially likely in the lead-up to an election, as was the case with Netanyahu's speech to Congress and with Dutch Prime Minister Rutte's rhetoric on EU COVID-19 relief.However, leaders also have pervasive incentives to shore up domestic support during times without a proximate election.For instance, leaders could use this tactic in the lead-up to votes on important legislation, thereby credibly signaling that the policy represents the preferences of the constituencies of wavering legislators and making a passing vote more palatable.The example of Theresa May antagonizing European leaders on Brexit fits this logic-May was likely trying to signal to skeptical voters and pro-Brexit MPs that the deal she was negotiating sufficiently protected 7 This is similar to the dynamic leaders face when leveraging domestic audience costs.Leaders have some control in directing domestic attention, but "the reactions of the domestic 'audience'-once engaged-are not entirely predictable" (Baum 2004, 603).The same logic applies to important economic partners.When Theresa May negotiated with the EU on the conditions of Brexit, she stood to pay a significant cost because the UK depended so heavily on trade and security cooperation with EU countries.their interests.Leaders may also engage in strategic antagonism when they face the prospect of seeing their political capital undermined by criticism for being insufficiently committed to the policies on which they campaigned.
Who Has the Global Microphone?
Together, the two conditions described earlier outline when a leader might want to induce a foreign backlash.However, the leader must also be able to provoke a foreign backlash if they so choose, which requires that they be able to sufficiently capture the foreign actor's attention.Additionally, the leader's domestic audience must be able to interpret that the foreign backlash entails a cost for the leader, which is more likely when they have access to free media.These factors define the scope of cases in which I expect the argument to hold.
Leaders who can easily capture foreign attention will have a larger potential to benefit from strategic antagonism.In this way, strategic antagonism is yet another tool that is most readily available to leaders that are already powerful.Leaders are more likely to be able to draw foreign attention when they can leverage either a strong military and economic capacity or an existing cultural or historical connection with the targeted audience (Sheafer and Gabay 2009).However, unlike in the case of "persuasive" public diplomacy, strategic antagonism sometimes provides an outlet for leaders who might otherwise be disadvantaged.Even leaders from relatively weak states, or from states with historically misaligned preferences, can sometimes make headlines with bombastic, antagonistic rhetoric.For example, in 2016, Philippine President Duterte made headlines when he called US President Obama a "son of a whore" for criticizing the human rights implications of Duterte's war on drugs.Duterte's language resulted in Obama canceling his visit with Duterte in the Philippines (Gayle 2016).However, Duterte's willingness to stand up to the powerful United States demonstrated his commitment to the war on drugs, winning the praise of his domestic base. 10 The magnitude of the cost is also determined by how it is perceived by the leader's public.If the leader privately pays a cost that the domestic public does not observe, then the leader cannot use it as a credible signal.The degree to which this is possible depends on how the foreign actor and the backlash are portrayed in the domestic media (Baum and Potter 2015).In particular, the mechanism of strategic antagonism is more likely to be viable when the leader's domestic audience has sufficient access to free media that when they hear about the backlash, they believe that it is likely to be a true representation of the events.

Mr. Netanyahu Goes to Washington
In March 2015, Israeli Prime Minister Netanyahu inspired scandalized headlines when he harshly criticized the Obama administration's pending nuclear agreement with Iran in a speech to a joint session of Congress.The US public reaction was mixed, but in the end, the speech elicited a backlash from Democratic politicians and voters while doing little to change the minds of Republicans, who already supported his position.Far from rallying behind Netanyahu, Congress postponed a bill that would have allowed a vote denouncing the agreement (Barrett and Jaffe 2015).Ultimately, the speech exacerbated polarization on policies regarding Israel among the US public and political elites.The Israeli public response was also divided.It appears 10 Duterte maintained strong public support throughout this event, and in a 2017 survey, a large majority (63 per cent) reported approval of his handling of relations with the United States (Poushter and Bishop 2017).Commentators at the time also noted that although Filipinos usually express high favorability toward the United States, Duterte's aggressive words "tapped a deep strain of resentment among Filipinos who feel as if they are treated like a second-class ally" (Paddock 2016).that Netanyahu exchanged his valuable time only to evoke a mixed domestic response in Israel and aggravate the polarization of policy toward Israel in the United States.
When examined through the lens of strategic antagonism, Netanyahu's visit to the United States makes more sense.Netanyahu's speech took place just two weeks before an election in Israel, when Netanyahu's Likud party was just barely ahead of the opposing Zionist Union party.Netanyahu's campaign strategy relied on mobilizing right-wing voters who were not part of his previous coalition.Facing a tight election at home, Netanyahu was precisely in the position where he would be willing to pay a cost in international support from an important ally in order to win support from a key domestic constituency.
In addition to meeting the scope conditions outlined by the theory, this case provides clear subpopulations in the United States and Israel that the theory expects to be influenced by Netanyahu's strategic antagonism.First, I expect to see a cost: the foreign actor will decrease their support for the leader implementing strategic antagonism.The Iran agreement was highly politicized in the United States, delineating clear subsets of the US public who were opposed to the policy preferences of Netanyahu's right-wing Israeli constituency-the Obama administration was strongly pursuing the agreement with Iran, and US Democrats were largely in favor of it.If Netanyahu indeed provoked a backlash, US Democrats and Obama supporters should decrease their support of Netanyahu following his speech.This would significantly contribute to the longterm cost of increased polarization toward Israel within the United States, enabling Democratic politicians to take policy stances that are less favorable toward Israel.
I also expect a corresponding increase in support from the key domestic constituency Netanyahu was trying to mobilize: the Israeli voters who supported far right-wing political parties.This was the group who Netanyahu needed to convince that he would stand up to future international pressure on Iran and whose preferences were most misaligned with supporters of the Iran agreement in the United States.In order to retain the premiership, Netanyahu needed these voters to support a coalition led by his Likud party.
Before proceeding, it is important to clarify what this case does and does not aim to do.The remainder of this article discusses how this case satisfies the requirements identified by the theory for Netanyahu to be both able and willing to provoke a costly backlash from the United States.It then presents evidence that the speech moved public opinion among predicted subsets of the population in both Israel and the United States.At the same time, I do not intend to show definitive evidence that Netanyahu's motivations were driven entirely by strategic antagonism.Doing so would require access to declassified documentation of internal discussions that are not available at this time.The selection of this case provides an unusual opportunity to triangulate the predicted public opinion outcomes of strategic antagonism within the current international environment.This is important in light of the fact that most research on public diplomacy has struggled to show systematic evidence of the effect of leaders' diplomatic efforts on public opinion. 11However, I acknowledge that the selection of a recent case presents a necessary trade-off of not being able to directly pinpoint the leader's motivation.Before concluding the case, I attempt to minimize this concern by explicitly discussing alternative mechanisms that might drive the observed patterns and behaviors.

US Public versus Israeli Right-Wing Preferences
A backlash from the United States was well suited to send an effective signal because US preferences were appropriately misaligned with the goals of the Israeli constituency crucial to Netanyahu's reelection.A majority of Americans supported the agreement, with public opinion split strongly along partisan lines: nearly four times as many Democrats approved of the agreement relative to Republicans (Gallup 2015).The Israeli public widely understood the Obama 11 For important exceptions, see Goldsmith and Horiuchi (2009) and Goldsmith, Horiuchi, and Matush (2021).
British Journal of Political Science administration, who took a leadership role in the negotiations, to be open to compromises with Iran.
In contrast, the Israeli public was strongly opposed to the agreement with Iran.After the agreement was signed in July 2015, 69 per cent of Israelis stated that they opposed the deal and 78 per cent said that they thought it endangered Israel (Welsh 2015).This view was most deeply held among Israelis on the far right, the crucial constituency whose support Netanyahu needed to secure the premiership.In the 2015 election, Netanyahu made a dramatic shift to the right in the late stages of his campaign, attempting to stimulate high turnout from far-right parties and openly rejecting the moderate parties that formed his 2013 coalition.In addition to taking an antagonistic approach to opposing the Iran agreement, Netanyahu turned his back on the two-state solution, revising the stance he campaigned on in 2009.
A reasonable skeptic might argue that Netanyahu's preferences on Iran were well known to the Israeli public.He had, after all, been an active public figure for decades and the prime minister for six years.However, Netanyahu's main political opponents also publicly opposed the deal and Netanyahu had a reputation for being a pragmatic politician with a penchant for shifting his positions for political expediency.More than just being opposed to the Iran deal, Netanyahu's campaign focused on convincing hardliners that he was uniquely committed to standing up to future international pressure on Iran, relative to the other candidates.

Cost of US Backlash
The case also meets the second condition of strategic antagonism: Netanyahu faced a meaningful (but manageable) cost as a result of provoking US Democrats.Israel receives substantial aid from the United States, estimated at US$127 billion by 2016 and accounting for 20 per cent of Israel's defense budget (Congressional Research Service 2016).The United States also frequently defends Israel in the United Nations, vetoing dozens of resolutions critical of Israel.On the one hand, the strong historical connection between the US and Israel created an upper bound to the cost that Netanyahu would have expected to pay for a US backlash, allowing him to criticize Obama in front of Congress without fearing devastating retribution.Support for Israel has generally been robust and bipartisan due to Israel being seen as a democratic, pro-United States government in a hostile region.Many evangelical Americans see it as a religious duty to defend Jerusalem, and many Americans perceive Israelis as sharing their values.
That said, Netanyahu did face the prospect of important negative consequences stemming from increased polarization of US support for Israel.Although Democrats are less uniformly supportive of Israel than Republicans, support has historically been strong across the aisle.Israelis view the bipartisan nature of US support to be vital to their survival, and Israel invests extensively in public and cultural diplomacy aimed at maintaining broad public support in the United States.12Commentators at the time pointed out that politically polarizing the public's support for Israel could result in less stable US policies toward Israel, noting that if Israel was "coded as a 'Republican' issue," it would strengthen Democrats who were less supportive of Israel.As a Brookings fellow observed: "Younger Democrats look at their leaders and they see Nancy Pelosi irate, and they see the president obviously irate.They're probably taking cues.And I think in the future, you may see a generation of Democratic leaders that's quite different [from the current pro-Israel leaders]" (Beauchamp 2015).
By contributing to the polarization of US support, Netanyahu risked future US policies toward Israel being contingent on the party in power.Legislative polarization also risks policy gridlock, including on foreign policy issues.For example, this poses a significant problem if Congress needs to affirmatively approve line items for Israel aid in the budget (Friedrichs and Tama 2022).
By alienating Democrats and invoking these costs, the speech could serve as a meaningful signal to the Israeli public about Netanyahu's preferences.

The US Response
Netanyahu's visit drew significant US attention, in part, because of Netanyahu's historical position within US domestic politics and also because of the invitation and endorsement of prominent US politicians.News outlets were flooded with stories about his speech and its political implications.In order to successfully leverage strategic antagonism, Netanyahu needed to provoke a backlash among the subset of the US public and political leaders whose preferences were known to be misaligned with his targeted Israeli constituency: Democrats and Americans who approved of Obama. 13 This is indeed what occurred, and this pattern is evident in survey data asking American respondents about their opinion of Netanyahu shortly before and after his speech. 14Figures 1  and 2 show the marginal change in US public support for Netanyahu after his speech, broken down by partisanship and support for Obama. 15Favorability toward Netanyahu decreased by 21.1 per cent among US Democrats and by 17.1 per cent among Americans that approved of Obama.Importantly, Netanyahu did not exchange a decrease in Democratic support for an increase in Republican support, which was already very high.As a result, the net change in US public opinion was decidedly against Netanyahu.B2 of the appendix.

13
Although political leaders set policy that may be costly to Netanyahu, their positions are constrained by public opinion (Baum and Potter 2015;Sobel 2001). 14 This dependent variable reflects both costs to Netanyahu personally and potential costs to Israel as a country because perceptions of a country's leader shape the sentiment and respect toward their country (Balmas 2018).15 These data are from four Gallup and Pew surveys run in February and March 2015.The marginal effects are from a probit regression predicting approval of Netanyahu based on whether the respondent was surveyed after his speech, interacted with partisanship or approval of Obama.For a detailed discussion of the analysis, see Online Appendix C.
The response from US political elites was also divided along partisan lines.Republican Speaker of the House John Boehner initially issued the invitation, and Netanyahu received a standing ovation from the Republican members of Congress.In contrast, prominent Democrats declared the speech to be offensive.In a blatant snub, the speech was boycotted by fifty-eight members of Congress, all Democrats.National Security Adviser Susan Rice said the speech was "destructive to the fabric of the relationship" between Israel and the United States (Hirschfeld Davis 2015), and House minority leader Nancy Pelosi said that it was "an insult to the intelligence of the United States" (Williams and Spetalnick 2015).Obama responded coolly, issuing a ten-minute rebuttal from the Oval Office and refusing to meet with Netanyahu on the grounds that it would be inappropriate to do so within weeks of the Israeli election.
Most importantly, Netanyahu's speech "injected a degree of partisanship" into US-Israeli relations, as National Security Advisor Rice noted at the time.While Americans were historically united in their preferences that the United States focus pressure on Palestine rather than Israel in the conflict, Democrats have become more supportive of the United States taking a neutral role, putting pressure on Israel, and using sanctions to oppose Israeli settlements (Waxman and Pressman 2021).Net sympathy for Israelis versus Palestinians among Democrats dropped from +36 per cent in 2013 to +19 per cent in 2015 and has continued to drop since then, down to a low of −3 per cent in 2020 (Saad 2021).While Netanyahu's speech did not originate this polarization, it did accelerate and solidify it.In this way, he contributed to the schism that today allows prominent Democratic politicians to openly criticize Israel on human right grounds and support withholding aid in response to Israeli settlements.

Israeli Reaction
Israeli voters were also exposed to extensive media coverage of Netanyahu's speech.For example, Israel's most widely read newspaper, Israel Hayom, featured the speech on their front page each day from March 1 to March 5, in addition to lengthy articles inside the publication discussing the event. 16igure 2. Americans that did not approve of Obama did not change their favorability towards Netanyahu following his speech, while Americans that approved of Obama decreased their favorability rating of Netanyahu by 17.1% (p < 0.05).Vertical bars are 95% confidence intervals.Marginal effects from Model 5, Table B2 of the appendix.
The US backlash and the potential long-term costs of the speech were frequently highlighted in Israeli media.Former Ambassador to the US Michael Oren noted that the format of the speech created a "crisis" with the United States, and former President Simon Peres said "for the first time, there is a spat with a US administration because Israel is interfering with American policies" (Hartman 2015). 17Former Mossad Director Meir Dagan decried the speech as risking the diplomatic benefits that Israel received from the United States: "The Americans hold the [UN Security Council] veto umbrella over us, and if there is a clash, the umbrella could disappear" (Harkov 2015).Additionally, the media coverage frequently noted that by antagonizing the Obama administration, the speech would increase polarization toward Israel within the US public.As Labor Party member Erel Margalit said: "Netanyahu 'stated good purposes' by arguing that Israel should not be a partisan issue in U.S. politics, but … he's achieving the opposite" (Keating 2015).Even articles that praised the speech acknowledged the "diplomatic fallout that such a polarizing Congressional speech would engender" (Jerusalem Post 2015).
Although the speech drew significant condemnation in Israel due to the potential loss of US support, some viewed this cost as being helpful to Netanyahu.A commentator in the Jerusalem Post said: "Every attack by US officials further solidifies his claim that he is the only Israeli leader willing to do whatever it takes to prevent a Shi'ite bomb" (Manor 2015).In an interview for Israel Hayom, Netanyahu highlighted that he was willing to pay a cost with the United States and emphasized that this distinguished him from his opponents: "A prime minister in Israel must be able to stand up even to our closest ally and tell the truth.The question you should be asking is not of me but of those Israelis who don't stand up to this danger and don't support this stance" (quoted in Saletan 2015).Netanyahu's campaign ads also featured the speech and compared Netanyahu to former Israeli Prime Minister Levi Eshkol, who initiated the Six Days War in 1976 in opposition to US preferences.
Survey data indicate that there was a small net increase in Israeli public support for Netanyahu and his Likud party immediately following his trip to the United States.However, Netanyahu's campaign strategy depended on mobilizing a very specific constituency: voters for right-wing parties with whom he planned to form a coalition.To examine whether Netanyahu achieved this goal, I compare individuals surveyed by the 2015 Israel National Election Study (INES) immediately before and after Netanyahu's speech (Shamir and Rahat 2017). 18The outcome measure is whether a respondent supports a coalition led by Netanyahu's Likud party.I focus on differential changes in support among respondents who voted for the right-wing coalition parties in 2013: United Torah Judaism, Shas, and Jewish Home. 19igure 3 shows the marginal change in support for a Likud-led coalition among these right-wing party supporters after Netanyahu's speech, compared to voters who supported Likud or a different party in 2013. 20As predicted, there was a large increase in support for a Likud-led coalition among right-wing Israelis following Netanyahu's speech.To put it simply, Netanyahu's speech was successful in mobilizing support for his coalition precisely among the hawkish, right-wing voters he needed to win over.The effects are strongest when comparing 17 This quote is from an article in the Jerusalem Post, which is considered to be center-right.18 I use March 3 as the cutoff for the analysis.Netanyahu's speech and Obama's objections were covered in the news beforehand, but attention to the event intensified dramatically on the day of the speech.For example, Google searches for "Netanyahu" increased to approximately thirty times the previous baseline in the United States, and Israeli searches for the term "Congress" spiked to five times the volume of the previous day (see Figures 5 and 6 in the Online Appendix).Anticipation effects should bias against seeing a significant effect, and the results are robust to excluding responses from March 2. responses from the four days immediately before and after the speech (March 1-4) but remain significant when expanding the sample to a twelve-day window (February 25-March 8). 21 The INES survey also allows for a test of several attitudinal outcomes consistent with the logic of strategic antagonism.First, strategic antagonism requires that the key domestic constituency recognizes (and is willing to pay) the cost of the backlash.Although the survey did not ask this question directly, it did ask whether respondents agreed that "Israel should do what is best for its security, even at the price of a confrontation with the American administration."I find that Israelis who voted for a right-wing coalition party in 2013 were significantly more likely to strongly agree that Israel should protect its security at the risk of confrontation with the United States. 22This also suggests that Netanyahu's right-wing constituency perceived a tension between their goals and the preferences of the United States.Secondly, a core mechanism of my argument is that Netanyahu used strategic antagonism to signal his commitment to the security preferences of right-wing Israelis.To evaluate this mechanism, I look at whether the speech affected right-wing respondents' belief that the Likud leadership would "deal with Israel's foreign affairs and security issues best."Indeed, right-wing coalition party supporters differentially increased their support of this statement after Netanyahu's speech (p < 0.1). 23

Netanyahu's Goals
In this section, I consider several alternative motivations that may have compelled Netanyahu's actions.As previously mentioned, I do not claim to be able to definitively rule out these  C2.

21
See Table C3 in the Online Appendix.The longer time window can help establish the persistence of the effect but is less preferable from a causal inference standpoint due to potential bias introduced by other salient events that occurred during the survey.For example, on March 6, a newspaper published a document claiming to show Netanyahu offered significant concessions to Palestinians in 2013 negotiations, potentially undercutting his right-wing support.alternative motivations.I also do not claim that strategic antagonism was Netanyahu's only motivation-in the complex world of international and domestic politics, actors respond to an array of overlapping incentives.Still, the available evidence suggests that domestic motivations loomed large and that strategic antagonism was an important element in understanding Netanyahu's overarching strategy.
Some observers view the speech as a sincere effort to galvanize US opposition to the Iran deal.However, the agreement with Iran was already highly politicized and salient in the United States, making it unlikely that cues from a foreign leader would have an effect on US public opinion (Zaller 1992).Moreover, because Obama was set to implement the agreement through executive action, there was little to gain from mobilizing Republicans. 24If anything, Netanyahu's speech appeared to unify moderate, pro-Israel Democrats behind Obama.Netanyahu also had little to gain by galvanizing long-term Republican opposition to the Iran agreement.It was well understood that the Republican party strongly opposed the Iran deal well before Netanyahu's speech, and leading candidates for the Republican nomination were already campaigning on either scrapping or reworking the deal if elected (Borger 2014).
We might ask whether the goal of the speech was to generate a "rally round the flag" effect in Israel.However, the pattern that scholars usually associate with the rally effect is the unification of public and elite support behind the leader in response to an immediate crisis (Groeling and Baum 2008).Far from unifying public support behind his cause, the speech exacerbated tensions among Israeli elites and the media.Additionally, perhaps Netanyahu's ability to secure an invitation to address a joint session of Congress signaled his diplomatic competence.If this was his goal, it is unclear why he would use the speech to aggressively antagonize Obama and the Democrats.Instead, once he secured the invitation, he could have used more "diplomatic" rhetoric, like he did during his 2011 speech to Congress.
Alternatively, Netanyahu may have been trying to satisfy a desire for retribution against a target of resentment (Lickel et al. 2006), or he may have been trying to foster a "tough" image (Huddy and Terkildsen 1993).These mechanisms could work in tandem with strategic antagonism, but if they had been Netanyahu's primary goals, there existed better audiences to whom he could have addressed the speech.For example, by antagonizing the European countries who were also party to the Iran negotiations, Netanyahu could have satisfied at least as much resentment from his constituency and looked just as tough, while paying fewer costs in terms of future cooperation.
Finally, Netanyahu's own framing of the speech to the Israeli public is consistent with what would be expected by strategic antagonism.As one columnist noted, Netanyahu "campaigned on his defiance" of the United States (Saletan 2015).There were no formal debates between the candidates, but Netanyahu spoke with his primary opponent, Isaac Herzog, during a brief, high-profile television appearance, only three days before the election.Herzog criticized Netanyahu's aggressive approach for costing Israel support on the Iran issue from global audiences.Netanyahu responded by focusing on how his approach signaled that he was the only candidate who was committed to standing up to international pressure to compromise on Iran.He argued that even though Herzog and his likely coalition partners were currently opposed to the Iran deal, if they won the election, they would "capitulate to any dictates [of the international community].They can't stand up to [them].He says he cares for Israel's security but when he faces the test, the prime minister must say a simple word [to international pressures]: No" (Sharon 2015).In other words, rather than trying to minimize the costs, he used the costs as a way to highlight his commitment to the stance of right-wing voters.

24
At the time, the best strategy Republicans had to undermine the agreement was a bill levying new sanctions on Iran.However, overcoming a presidential veto required sixty-seven Senate votes, and Republicans only held fifty-four seats.

Conclusion
Far from being a mere error in judgment, provoking a foreign backlash can, in fact, be a deliberate and beneficial strategy.When the backlash comes from a foreign actor whose support is valuable to the leader's international goals and whose preferences are opposed to the preferences of a key domestic constituency, this backlash can be a costly signal of the leader's commitment to the domestic constituency's preferred policy.To be clear, there are times when it is more likely that leaders desire to persuade a foreign actor, incorrectly estimate that audience's response, and accidentally provoke a backlash.However, many of the actions leaders take that result in a foreign backlash are clearly antagonistic and result in responses that seem easily predictable.In order to better explain these actions, it is useful to understand the mechanism through which they can benefit the leader.
Clarifying the mechanism behind this phenomenon has broader applications.Diplomatic campaigns played out on the global stage can be leveraged to signal to interested international actors beyond the domestic audience.For example, a leader may attempt to provide reassurance to an alliance partner by evoking a backlash from an adversary to the alliance.A leader could also use a costly foreign backlash to signal resolve in a negotiation with an adversary.For example, when President Bush campaigned internationally to gain support for the invasion of Iraq in 2003, his aggressive stance was off-putting to publics in Germany and France.By paying the cost in public approval from French and German audiences, Bush may have increased the Iraqi evaluation that he was committed to an aggressive policy.
Strategic antagonism can take a number of different forms.For example, it can be a short-term strategy to cater to a domestic group by alienating a foreign actor with a single, dramatic action.Alternatively, it can take the form of longer-term behavior, taking many actions to build an overall strategy of alienating valuable foreign actors to cater to domestic preferences.For example, scholars have noted that since 2016, Chinese diplomats have shifted dramatically toward aggressive diplomatic rhetoric, known as "wolf warrior diplomacy."This has been received negatively by international observers and, over time, decreased public opinion of China and increased expectations of Chinese aggression (Bandow 2020).Consistent with the logic of strategic antagonism, Chinese diplomats who implement the strategy frequently call attention to (and loudly denounce) instances of foreign criticism in response to their statements.Domestic nationalists want the Chinese Communist Party (CCP) to keep a strong foreign policy and leverage its strength against Western opponents, and commentators note that using aggressive language and highlighting foreign criticism is useful to the CCP in shoring up its domestic image among a widely nationalistic public.
With the rise of populism around the globe, the use of strategic antagonism may become an even more fruitful tool as leaders try to signal their "outsider" credentials and convince voters that they do not conduct "politics as usual."For example, Hungarian Prime Minister Victor Orban alienated the European People's Party (EPP) by attacking the EPP-affiliated European Commission president in his 2019 domestic campaign.This lost him the political cover and legitimacy of allies in the EU, where Hungary had hoped to benefit from billions in aid from the COVID-19 stimulus package.However, the move won Orban domestic support, where Euroskepticism is popular and Orban relies on his image as a "European renegade" (Stevis-Gridneff and Novak 2021).
The intended audience or policy spectrum may vary, but the underlying conditions necessary for this strategy to be both possible and wise are the same: the leader must be able to draw attention of the foreign actor; the cost of the foreign backlash must be sufficiently large to be a credible signal but not so large to dissuade any leader from paying it; and the preferences of the intended audience must be opposed to that of the alienated foreign actor.Diplomacy is a multifaceted tool.In order to better understand it, we must examine the motivations behind strategies that stray from leaders' stated intent.The theory presented here implies that a leader's ability to evoke a 8

Figure 1 .
Figure 1.Republicans did not significantly change their approval of Netanyahu, while Democrats decreased their approval of Netanyahu by 21.1%.Vertical bars are 95% confidence intervals.The decrease within Democrats is statistically significant (p < 0.05).Marginal effects from Model 3, TableB2of the appendix.

Figure 3 .
Figure 3. Israelis who voted for a right-wing coalition party in 2013 increased their support for a Likud-led coalition in the period following Netanyahu's speech (p < 0.05).Vertical bars are 95% confidence intervals.Marginal effects from Appendix TableC2.