Do anti-elitist parties behave differently in parliament than other parties? Existing evidence is inconclusive: some studies suggest that anti-elitist parties do not show a shared voting pattern as this is mainly structured by their left- or right-wing ideology. Others suggest that these parties vote against legislation more often. In order to address this question, we develop a new method that allows one to look at different explanations of voting concurrently while also taking into account characteristics of the vote. We find that anti-elitist parties do vote in a similar way and different from other parties, but only on legislative votes. As such, we present a major step forward in our understanding of and methodological approach to parliamentary voting behavior.