Ted Cruz
Republican U.S. Senator from Texas
Pete Sessions
US Representative from Texas
Rudy Giuliani
Trump adviser; former mayor of New York City
Thomas C Leppert
Mayor of Dallas (2007-2011)
Tim Pawlenty
Former Governor of Minnesota; President and CEO of Financial Services Roundtable
Ronald Kirk
Former Director, Office of the United States Trade Representative (Confirmed 3-18-09)