Donald Trump, president and chief executive officer of Trump Organization Inc. and 2016 Republican presidential candidate, holds up a pledge letter during a news conference at Trump Towers in New York, U.S., on Thursday, Sept. 3, 2015. "I have signed the pledge," he said, referring to a document stating that he would not run as an independent candidate in the event that he does not win the Republican nomination. Photographer: Victor J. Blue/Bloomberg via Getty Images
Getty Images

Bloomberg Bloomberg