Mitt Romney U.S. senator from Utah, former Massachusetts governor

Rob Portman US Senator from Ohio (2011-present); former US Representative (1993-2007); former dir. OMB

John Boehner Republican US Representative from Ohio; majority leader

Republican National Committee U.S. political committee that leads the Republican Party of the U.S., a/k/a The Grand Ol' Party/GOP

Steve Chabot US Representative from Ohio (1995-2009 and 2011-present)

Winnovember Political Action Committee

Allen West Tea Party-backed Congressman elected in 2010 (R-Fla.)

Tim Pawlenty Former Governor of Minnesota; President and CEO of Financial Services Roundtable

Brad Wenstrup US Representative from Ohio

National Republican Senatorial Committee Campaign committee for Republican U.S. Senate candidates

Federal Election Campaign Contributions