For five years, Trump personally promoted the bigoted lie that the nation's first black president wasn't born in America. His vow if elected to investigate and possibly jail Clinton, along with his threats to purge military leaders and go after the press by changing libel laws, come straight out of the playbook of foreign dictators, not U.S. presidents. His lack of self-control when challenged is alarming in a leader who would take charge of America's nuclear arsenal.