These committees do vet the candidates who represent them just as the Republican National Committee made sure that John McCain's birth in the Panama Canal Zone did not go against the U. S. Constitution, Article II, Clause 5: No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President;. . . ." because he was born in 1939
Mistake #1: John McCain was not born in the Canal Zone.