he is not looking to bust corruption, generally all he wants is an investigation into 2016 and into brees ma and the bidens. sondland i think has real credibility issues. if i'm thinking about him as a potential witness or investigator i'd think twice. a couple things that don't ring true. he said i heard about bris ma but i didn't think there was a biden connection. both witnesses said he knew, we talked about it. he also said -- sondland said nobody ever shared their miss gings with me, vindman, taylor and others have said, no, there was plenty of concern raised to sondland. he say i just like to talk to people one-on-one, that's my style. >> there have been a number of other witnesses in some cases have provided explosive testimony. >> there have been other important witnesses. dr. fiona hill one of the top white house russia advisers talked about this shadow diplomacy, this group led by rudy and perry and sondland.