“…Why Twitter Existing work in political attention relies largely on political speeches (Laver, Benoit, and Garry, 2003;Oliver and Rahn, 2016;Yu, Kaufmann, and Diermeier, 2008;Quinn et al, 2010) and party manifestos (Gabel and Huber, 2000;Slapin and Proksch, 2008;Benoit et al, 2016). At the same time, politicians around the world increasingly use social media to communicate, and researchers are examining the impacts of that use on elections (Bossetta, 2018;Karlsen, 2011), the press (Murthy, 2015;Shapiro and Hemphill, 2017), and public opinion (Michael and Agur, 2018). Given its prevalence among politicians and in the public conversation about politics, politicians' behavior on Twitter deserves our attention.…”