President Obama hailed Iraq’s prime minister on Tuesday as the kind of leader who could finally unite a fractious nation, and help America leave, after 11 years of war. “What is clear is that we will be successful,” Obama said during his first White House meeting with Haider al-Abadi. “And part of that success is Prime Minister al-Abadi’s commitment to an inclusive government.” “The remarkable thing is to find a case where the relationship went smoothly,” said Phil Zelikow, a historian at the University of Virginia and counselor to former secreta...