Donald Trump on Thursday issued a threat to stop fundraising for the Republican Party after a report emerged that party officials could focus resources on down-ballot candidates. "I mean, if it is true, that's OK too because all I have to do is stop funding the Republican Party," Trump said on Fox News's "The O'Reilly Factor" when asked about the Republican National Committee potentially diverting funds away from the presidential race. "I'm the one raising the money for them," he continued. "In fact, right now I'm in Orlando, I'm going to a fundraiser for the Republican Party. If they want...