Affiliated liberal groups founded by a Democratic political strategist and heavily funded by labor unions.
A super PAC formed in 2013 with the goal of pushing the Republican Party further right.
Conservative PACs aiming to elect “true” conservatives to Congress and defeat incumbent Republicans that fall short of that standard.
A Democratic super PAC created to “protect and expand the Democratic majority in the U.S. Senate.”
A conservative super PAC that helped foster the tea party movement.