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

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

George Voinovich former US Senator from Ohio

John McCain US Senator and Representative from Arizona

US Chamber of Commerce PAC (Ncap)

Ohio Republican Party State Central & Executive Committee

Josh Mandel far-right Ohio Republican congressman

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

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

Republican Party of Cuyahoga County Federal Campaign Committee

Federal Election Campaign Contributions