“…These findings have implications for a variety of literatures. Most directly, they document the effectiveness of strikes as a political strategy for unions, adding to the existing literature on unions as political organizations that shape the preferences of their members (Ahlquist and Levi 2013; Kim and Margalit 2017), teach their members civic skills and recruit them to participate in politics (Macdonald 2019; Schlozman, Verba, and Brady 2012), mobilize working-class voters in elections (Feigenbaum, Hertel-Fernandez, and Williamson 2019; Leighley and Nagler 2007; Rosenfeld 2014), make campaign contributions to pro-labor candidates (Stegmueller, Becher, and Käppner 2018), and lobby local, state, and national governments (Anzia and Moe 2015; Becher, Stegmueller, and Käppner 2018; DiSalvo 2015; Hacker and Pierson 2010; Moe 2011). Strikes, we show, can complement these other tactics by building support for unions in the mass public.…”