Washington Donald Trump says he's no "masochist" - so if one day he finds himself plummeting in the polls, he'd drop out of the Republican presidential race.<br />Right now there's no reason to go anywhere: The real estate mogul has consistently led national GOP polls for months.<br />But in an interview with CNBC's John Harwood , he said he'd drop out of the 2016 campaign if he found himself alongside Republican contenders who are struggling to get off the ground.<br />In pressing Trump on how he'd accomplish many of his campaign goals - like deporting 11 million undocumented immigrants - Harwood said, "We don't have Superman presidents."<br />"No," Trump said, "but we will if you have Trump."