support by key swing vote senators including jeff flake who set all of this into motion during the course of today. we're joined once again by our crime and justice reporter, shimon. walk us through what the investigation will look like, how long wiit will take. >> it is important to remind people this is entirely dictated by the white house. that is it is not the fbi's investigation. they are using agents and investigators from the fbi to do this, because it is how these background investigations are done. essentially what happens here is since the white house has asked for a supplemental investigation, it is entirely limited in cope and the white house will dictate what that scope is going to be. this isn't going to be something that the fbi is going to open a case on or assign, you know, dozens and dozens of agents to and to start digging through whether or not brett kavanaugh committed some kind of sex crime. that's not their job here. the white house essentially