During a brief, little-noticed speech in May, Rep. Mick Mulvaney implored Republican presidential contenders and their supporters to stop tailoring their rhetoric to satisfy true believers and instead prioritize expanding the conservative tent. (SNIP) This concern was clearly influential in his decision to endorse Paul. Comparing the Kentucky senator with rival Republican contender Sen. Ted Cruz of Texas, Mulvaney had this to say in an interview with the Associated Press: "Ted is not bringing anybody new into the party. Rand is."