The midair collision between an American Airlines flight and the military helicopter involved 67 people and is not expected to have any survivors.
Mr Trump blamed previous administrations’ efforts to promote diversity at federal agencies for contributing to the crash.
An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.
Investigators vow to 'leave no stone unturned' in probe of deadly mid-air collision - Officials say there are no survivors ...