WASHINGTON, DC - AUGUST 23: Marine One, with U.S. President Barack Obama on board, is shadowed by another helicopter as they fly past the Washington Monument after departing the White House August 23, 2016 in Washington, DC. Obama is traveling to Baton Rouge, Louisiana, to survey historic flooding that has damaged more almost 70,000 homes and killed at least 13 people. (Photo by Chip Somodevilla/Getty Images)