congress and share with the public what conversations he had with the president that may bear on whether there was any effort to obstruct the investigation or impede it. >> reporter: in light of these news reports about the conversations. do you think the president has the credibility to appoint a new fbi director? >> the president has severely undermined his own credibility on anything pertaining to the russian involvement in our election paired with respect to the choice of a new director, i agree with lindsey graham. i think it should be in a political choice. i think the ideal candidate, not speaking to anyone in particular. i think the ideal profile of a candidate would be someone who is a retired judge or active judge who is willing to step down from the bench, ideally that has prosecutorial experience. someone that is consistent with the necessity of true