The Senate Conservatives Fund, founded by then-Sen. Jim DeMint (left) in 2008, is already criticizing the Conservative Victory Project, a new super PAC organized by American Crossroads, the sleek 2012 fundraising machine that boasted Karl Rove as point man. (Associated Press)

The Senate Conservatives Fund, founded by then-Sen. Jim DeMint (left) in 2008, is already criticizing the Conservative Victory Project, a new super PAC organized by American Crossroads, the sleek 2012 fundraising machine that boasted Karl Rove as point man. (Associated Press)