he sent out a tweet accusing president obama of bad faith in the transition and then the next day he reported that they had a good conversation and the transition was going swimmingly. so it's like a dr. jekyll, mr. twitter thing he's got going and you never know exactly which side is up. >> and this back and forth between the president and the president-elect, do you think there's lasting effect here, or come january 20th, they're ships passing in the night? >> i think very clearly on january 20th, donald trump will become president of the united states. he may or may not rely on predecessors. i remember one of the things that president-elect obama asked the president bush was that he assemble all former presidents for a conversation about the presidency and what he should be