This study explores depictions of Islam in Senate rhetoric across the 106th (1999–2000) and 111th (2009–2010) Congresses. These two periods are compared to consider overall patterns in congressional discourse on Islam and to explore how the September 11th, 2001 attacks might have shaped this discourse. The study also examines the possible effects of ideology, partisanship, and senator religious affiliation on representations of Islam. The article ultimately suggests that despite some important post-September 11 shifts in Senate rhetoric pertaining to Islam, persistent themes regarding securitization, Orientalist tendencies, moderate-fundamentalist dichotomizations, and ideological divisions merit scrutiny. This study contributes to work on Congress, religion, and American politics by assessing trends in the discursive representation of Islam by United States legislators. Theoretically, the article draws upon the Copenhagen School in International Relations to assess the securitization of Islam within legislative debates and to develop the related concept of normalization.