Jim DeMint may be the most powerful person in the conservative movement today. He was one of the most conservative senators when he was elected to represent South Carolina in 2005, bucking his party to vote against such initiatives as No Child Left Behind and the Medicare prescription drug benefit.

In 2009, DeMint formed the Senate Conservatives Fund (SCF), a political action committee backing not only successful candidates, including Pat Toomey (R-PA), Rand Paul (R-KY) and Marco Rubio (R-FL), but also extremists who blew winnable races for the GOP, among them, Richard Mourdock in Indiana, Christine O’Donnell in Delaware, Sharron Angle in Nevada and Todd Akin in Missouri.

The SCF is currently headed by Matt Hoskins, a former DeMint staffer. SCF has led the fight against Republicans who oppose the effort to defund Obamacare, winning a ton of donations in the process. But it also faces a backlash. According to Politico, “That fundraising windfall has left the impression among the group’s legion of critics in the Republican establishment that the anti-GOP campaign has been more about boosting the group’s notoriety among the conservative base – rather than the common cause of electing more Republicans to the Senate.”

In 2010, DeMint was re-elected to his Senate seat, but in January 2013 resigned to head the Heritage Foundation.
Jim DeMint (Heritage Foundation)