President Obama delivered a soaring eulogy for the late Richard Holbrooke today, calling him a "leading light" of U.S. diplomacy. But ... the president's warm remarks belie a far more complex relationship between the President and Holbrooke...Attention also turned to his tumultuous final years, when Holbrooke was portrayed as a disruptive force within the Obama administration, whose relationship with top American and foreign officials had chilled, and whose professional tenure was nearly over... The authors mine interviews with people who knew Holbrooke in Kabul, Islamabad, New York, Brussels, and Washington—including his wife Katie Marton, Gen. David Petraeus, and Secretary of...