Trump campaign manager Manafort resigns after troubled stretch

Paul Manafort resigned as chairman of Donald Trump's U.S. presidential campaign on Friday, no longer enjoying the full confidence of a Republican candidate who is trying to boost his flagging White House bid. Trump said in a statement he had accepted Manafort's resignation, but did not offer an explanation for the departure. It came in a week when Trump has already reshuffled top campaign leaders, effectively demoting Manafort, and has tried to be more disciplined and on message as he seeks to r