- United States Senator John Cornyn
- United States Senator Ted Cruz
- Former Texas Supreme Court Chief Justice Tom Phillips
- Former Texas Supreme Court Justice Paul Green
- Former Congressman Lamar Smith
- Former State Senator John Shields
- Former State Representative Colonel Frank Corte
- Former District Judge Michael Peden
- Former District Judge Cathy Stryker
- Former District Judge Rene Diaz
- Former County Judge Cyndi Taylor Krier
- Former County Commissioner Kevin Wolff