AP
President Donald Trump waves as he leaves the White House in Washington, Wednesday, Jan. 24, 2018, enroute to Davos, Switzerland, to attend the World Economic Forum. Trump is ready to play salesman as he heads to an economic summit in the Swiss Alps, making the case that his "America First" agenda can go hand-in-hand with global cooperation. (AP Photo/Manuel Balce Ceneta)
- Manuel Balce Ceneta
U.S. President Donald Trump steps off Air Force One on arrival at Zurich International Airport for the Davos World Economic Forum, Thursday, Jan. 25, 2018, in Zurich, Switzerland. Trump is ready to play salesman at the Davos economic summit in the Swiss Alps. (AP Photo/Evan Vucci)
- Evan Vucci