Graffiti depicts Russian President Vladimir Putin, left, and U.S. President-elect Donald Trump in a suburb of Belgrade, Serbia, Tuesday, Dec. 6, 2016. Trump has challenged U.S. intelligence assessments that Russia was trying to tip the November election to him.
Graffiti depicts Russian President Vladimir Putin, left, and U.S. President-elect Donald Trump in a suburb of Belgrade, Serbia, Tuesday, Dec. 6, 2016. Trump has challenged U.S. intelligence assessments that Russia was trying to tip the November election to him. Darko Vojinovic AP file
Graffiti depicts Russian President Vladimir Putin, left, and U.S. President-elect Donald Trump in a suburb of Belgrade, Serbia, Tuesday, Dec. 6, 2016. Trump has challenged U.S. intelligence assessments that Russia was trying to tip the November election to him. Darko Vojinovic AP file