Ex-Trump aide Manafort violated plea agreement by lying: prosecutors

President Donald Trump's former campaign chairman Paul Manafort has violated his plea agreement by lying to investigators, prosecutors said in a court filing Monday.Manafort had agreed to cooperate with special counsel Robert Mueller's investigation of possible collusion between the Trump campaign and Russia as part of a plea deal in September."After signing the plea agreement, Manafort committed federal crimes by lying to the Federal Bureau of Investigation and the Special Counsel's Office on a