In this Dec. 28, 2016 file photo, President-elect Donald Trump speaks to reporters at Mar-a-Lago in Palm Beach, Fla. Trump challenges U.S. intelligence agencies to provide decisive evidence of Russian involvement in election-season hacking.
In this Dec. 28, 2016 file photo, President-elect Donald Trump speaks to reporters at Mar-a-Lago in Palm Beach, Fla. Trump challenges U.S. intelligence agencies to provide decisive evidence of Russian involvement in election-season hacking.