GOP Republican Presidential Candidate Donald Trump Gives Foreign Policy Address In DC

Sen. Jeff Sessions (R-AL) (2nd L) attends a speech by Republican presidential candidate Donald Trump at the Mayflower Hotel April 27, 2016 in Washington, DC. The back of Russian Ambassador to the United States Sergey I. Kislyak's head can be seen at the right side of the photograph. (Photo by Chip Somodevilla/Getty Images)

Sen. Jeff Sessions (R-AL) (2nd L) attends a speech by Republican presidential candidate Donald Trump at the Mayflower Hotel on April 27, 2016 in Washington, DC. The back of Russian Ambassador to the United States Sergey I. Kislyak’s head can be seen at the right side of the photograph. (Photo by Chip Somodevilla/Getty Images)