Real estate mogul and billionaire Donald Trump (R) and his wife Melania Knauss-Trump attend Golf legend Jack Nicklaus' Congressional Gold Medal ceremony in the U.S. Capitol Rotunda March 24, 2015 in Washington, DC. Trump announed on March 18 that he has launched a presidential exploratory committee.
(March 23, 2015 - Source: Chip Somodevilla/Getty Images North America)