Mick Mulvaney: “I think the purpose here is really to sort of treat this as a problem-solving exercise versus a blame-laying.”

No, never. Nor should they. That's an issue that was already litigated during the election. Voters knew the President could have given his tax returns, they knew that he didn't and they elected him anyway.

If there is one criticism that I would level against the President is he didn't hire very well.

I think the fair question to ask is, would Barack Obama have won for helping bring an end to the war between Russia and Ukraine?

I think it's absolutely personal.