The world leader Tom Donilon admires most? Yitzhak Rabin The world leader Tom Donilon admires most? Yitzhak Rabin The Biden insider reflected on his decades in government work during a recent Council on Foreign Relations event Carolyn Kaster/AP National Security Adviser Tom Donilon speaks during the daily news briefing at the White House in Washington on Thursday, May 17, 2012. By Share BlackRock Investment Institute Chairman Thomas Donilon, who served as national security advisor under President Barack Obama from 2010-2013, reflected on leadership lessons from his career in politics and government during a recent virtual event hosted by the Council on Foreign Relations.