Trump determined to destroy ISIS 'unlike anybody I've ever met,' Lindsey Graham says

President Trump "changed the rules of engagement" the government uses to fight the Islamic State terror network, and in doing so, brought down its leader, Abu Bakr al-Baghdadi, Sen. Lindsey Graham, R-S.C., said at the White House on Sunday, following al-Baghdadi's death at the hands of U.S. special forces.