Mitt Romney
U.S. senator from Utah, former Massachusetts governor
John McCain
US Senator and Representative from Arizona
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 W Bush
43rd US president, ex-governor of Texas, son of George H W Bush
Scott P Brown
US ambassador to New Zealand, former Republican US Senator from Massachusetts
John Thune
US Senator from South Dakota (2005-present); former US Representative (1997-2003)
Michael Steele
Former Chairman, Republican National Committee
Sharron E Angle
Republican candidate for US Senate from Nevada in 2010
Rick Lazio
US Representative from New York; 2010 Republican candidate for New York governor