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
John McCain
US Senator and Representative from Arizona
Fred Dalton Thompson
US Senator from Tennessee
George W Bush
43rd US president, ex-governor of Texas, son of George H W Bush
Pat Roberts
Former US Senator from Kansas (1997-2021); former US Representative (1981-1997)
Sam Brownback
Governor of Kansas; Trump nominee to be Ambassador at Large for International Religious Freedom, Department of State