FILE - AUGUST 19, 2016: It was reported that Paul Manafort issued his resignation to Republican Presidential candidate Donald Trump August 19, 2016. WASHINGTON, DC - APRIL 27: Paul Manafort, advisor to Republican presidential candidate Donald Trump's campaign, checks the teleprompters before Trump's speech at the Mayflower Hotel April 27, 2016 in Washington, DC. A real estate billionaire and reality television star, Trump beat his GOP challengers by double digits in Tuesday's presidential primaries in Pennsylvania, Maryland, Deleware, Rhode Island and Connecticut. "I consider myself the presumptive nominee, absolutely," Trump told supporters at the Trump Tower following yesterday's wins. (Photo by Chip Somodevilla/Getty Images)