Republican National Committee
U.S. political committee that leads the Republican Party of the U.S., a/k/a The Grand Ol' Party/GOP
Mitt Romney
U.S. senator from Utah, former Massachusetts governor
Michele Bachmann
former US Representative from Minnesota
Rob Portman
US Senator from Ohio (2011-present); former US Representative (1993-2007); former dir. OMB
John McCain
US Senator and Representative from Arizona
Donald Trump
45th President of the United States