Fiona Hill currently serves as the senior director for Russian and European Affairs on the National Security Council. She was part of the U.S. delegation at the table on Monday along with White House Chief of Staff John Kelly, Secretary of State Mike Pompeo, National Security Adviser John Bolton, and interpreter Marina Gross. The British-born Russia expert left the Brookings Institution, a D.C. think tank, to join the Trump administration last year...Hill was initially tapped to join the National Security Council under Michael Flynn's leadership. The psychological profile of Putin she co-authored with Clifford G. Gaddy, Mr. Putin: Operative in...