WASHINGTON — The U.S. ambassador to the European Union said Thursday that President Donald Trump directed him and other envoys to work with his personal lawyer, Rudy Giuliani, on Ukraine policy and that he disagreed with the directive. Gordon Sondland’s closed-door testimony to House impeachment investigators was aimed at distancing himself from Trump and Giuliani’s efforts to pressure Ukraine into investigating Democratic rival Joe Biden and his son Hunter. Sondland said he was disappointed Trump instructed him to work with Giuliani, a directive that sidestepped the role of the State Department and the National Security Council.