FILE - In this Aug. 16, 1959 file photo, Gov. Nelson Rockefeller of New York and President Dwight D. Eisenhower, left, shake hands at the White House after conferring min Washington. President Barack Obama's summer fashion choice, not unprecedented among presidents - himself included - was the talk of social media, Thursday, Aug. 28, 2014. Other presidents who have taken on tan include Bill Clinton, Ronald Reagan, George H. W. Bush, George W. Bush and Dwight Eisenhower. (AP Photo/Byron Rollins, file)