Mitt Romney
U.S. senator from Utah, former Massachusetts governor
Josh Mandel
far-right Ohio Republican congressman
Bill Johnson
US Representative from Ohio (2011-present)
Steve Stivers
US Representative from Ohio; chairman, National Republican Congressional Committee
Joe Wurzelbacher
Joe the Plumber
Jim Renacci
US Representative from Ohio
Bob Gibbs
US Representative from Ohio
Republican National Committee
U.S. political committee that leads the Republican Party of the U.S., a/k/a The Grand Ol' Party/GOP
Rob Portman
US Senator from Ohio (2011-present); former US Representative (1993-2007); former dir. OMB