see more

Contractors work on the site of an event for Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, not pictured, at the Trump International Hotel Washington DC in Washington, D.C., U.S., on Wednesday, March 16, 2016. Trump took his outsider presidential campaign to the nation's capital Monday, meeting with former House Speaker Newt Gingrich and Congressional Republicans before a news conference and, later, an address to an influential pro-Israel group. Photographer: Drew Angerer/Bloomberg via Getty Images

Contractors work on the site of an event for Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, not pictured, at the Trump International Hotel Washington DC in Washington, D.C., U.S., on Wednesday, March 16, 2016. Trump took his outsider presidential campaign to the nation's capital Monday, meeting with former House Speaker Newt Gingrich and Congressional Republicans before a news conference and, later, an address to an influential pro-Israel group. Photographer: Drew Angerer/Bloomberg via Getty Images