Mueller seeking testimony from PR executives with Manafort ties: NBC

Special Counsel Robert Mueller has issued grand jury subpoenas seeking testimony from public relations executives who worked on an international campaign organized by former Trump campaign adviser Paul Manafort, NBC News reported on Friday, citing people familiar with the matter.This is the first indication that Mueller, who is investigating possible collusion between President Donald Trump's campaign team and Russia, is beginning to compel witness testimony before the grand jury, NBC said.