Are There 'Secret' Trump Voters and Could They Swing the Election?

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Republican presidential candidate Donald Trump is gaining in the latest polls against his Democratic party rival Hillary Clinton. Trump's backers say he has even more support than polls suggest. That could be, if, as some believe, significant numbers of Trump voters are not telling pollsters that they plan to vote for him. VOA’s Steve Baragona takes a look. VOA Khmer's Phy Sopheada narrates.