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
Ted Cruz
Republican U.S. Senator from Texas
Clark Durant
Munder Capital; co-founded the independent Cornerstone Schools in Detroit in 1991 and served as Chair or CEO for 18 years
Mick Mulvaney
former Acting White House Chief of Staff, Director of Office of Management and Budget. former US Representative from South Carolina.
Tim Scott
US Senator and Representative from South Carolina