news on a stunning turn of events, casting new doubt on brett kavanaugh's nomination to the u.s. supreme court. a short while ago president trump officially ordered a new and limited fbi investigation into the sexual assault allegations against kavanaugh. mr. trump going along with republican senate leaders who were forced to agree to the delay. republican senator jeff flake demanded the investigation, threatening to withhold his vote for kavanaugh in the full senate, a move supported by other key senators considered to be swing votes. it is another day of high drama after the emotional testimony by kavanaugh and his accuser, christine blasey ford. i'll get reaction from former u.s. attorney and first let's go to our congressional correspondent phil mattingly. phil, walk us through what happened and what happens next. >> wolf, in a nomination that led to twists and turns that have come at a mind-numbing pace