Kentucky Sen. Rand Paul (AP) a Republican candidate for president today warned his party risks its worst electoral beating since 1964 if frontrunner Donald Trump wins the GOP nomination. It would probably be the worst defeat weve had since (Barry) Goldwater, Id predict, if Trump where the nominee, Paul said in a Boston Herald Radio Morning Meeting interview, referring to the 1964 race during which the Republican from Arizona carried only six states against Lyndon B.