WASHINGTON, DC - MAY 16: US President Donald Trump (R) extends his hand for a handshake with President of Turkey Recep Tayyip Erdogan (L), in the Oval Office of the White House on May 16, 2017 in Washington, DC. Trump and Erdogan face the issue of working out cooperation in the fight against terrorism as Turkey objects to the US arming of Kurdish forces in Syria. (Photo by Michael Reynolds-Pool/Getty Images)