Former U.S. Ambassador to Russia Michael McFaul and James Stavridis, retired admiral and former Supreme Allied Commander for NATO in Europe, talk about the current state of U.S.-Russia relations and other foreign policy concerns.

McFaul will discuss his book "From Cold War to Hot Peace: An American Ambassador in Putin's Russia" at the Harvard Book Store tonight at 7 p.m.

Michael McFaul, former U.S. Ambassador to Russia. Political science professor at Stanford University and author of "From Cold War to Hot Peace: An American Ambassador in Putin's Russia". He tweets @mcfaul.

Admiral James Stavridis, dean of the Fletcher School of Law and Diplomacy at Tufts University. Supreme Allied Commander of NATO in Europe from 2009-2013. He tweets @stavridisj.