Progressive Era Repression and persecution Anti-war and civil rights movements Contemporary Socialist Action is a Trotskyist political party in the United States.

SAct describes itself as a revolutionary socialist party fighting for true democracy, because capitalist states "cannot be used as tools of the working class, but have to be smashed".

SAct argued that they were expelled for defending Trotskyist ideas of Permanent Revolution, class independence, and continued support for the Fourth International.

In 2016, SAct nominated their first presidential ticket, selecting national secretary Jeff Mackler for president and Karen Schraufnagel for vice-president.

[16] In 2018, SA member and Iraq War veteran[18] Fred Linck hoped to run as Socialist Action candidate for United States Senate in Connecticut.

[25] Despite being left off the ballot, Linck continued to run for office as an official write-in candidate, and ultimately received 70 votes, or 0.01%.