Donald Trump promised to build a wall along the southern border.<br />He’s referred to Mexican immigrants as rapists and criminals.<br />He’s done much to alienate Latino voters, yet according to some polls, he’s running ahead of 2012 GOP nominee Mitt Romney among them.<br />Online NBC News and SurveyMonkey polls have Trump winning just under a third of the Hispanic vote, more than Romney’s 27 percent against Obama.<br />"Some of these polls only have 100 or 80 Latinos in them, so the margin of error is plus-or-minus 10 points," said Matt Barreto, who is working for Hillary Clinton's campaign, focusing on surveying Latinos, and is the co-founder of the polling firm Latino Decisions.<br />Hispanics typically turn out at lower rates - 48 percent of eligible Latino voters casted ballots in 2012, compared to 67 percent of whites and 64 percent of blacks - making it more challenging, and more important, for pollsters to separate voters from non-voters.