Washington (CNN) President Donald Trump is clearly angry and shaken -- despite his occasional public insistence that he is neither -- by the revelations surrounding his efforts over the summer to pressure the Ukrainian President to investigate Joe Biden.

How do I know? Because I watched the President's news conference with the Finnish President on Wednesday -- a spectacle of bullying, victimhood, anger and vengeance that is shocking even for Donald Trump.

Asked whether he would cooperate with the subpoenas from the House related to the impeachment investigation, Trump said this:

"This is a fraudulent crime on the American people, but we'll work together. With shifty Schiff and Pelosi and all of them, and we'll see what happens, because we did absolutely -- I had a great call with the President of Ukraine. 100%."

Trump went on to accuse House Intelligence Chairman Adam Schiff (D-California) of having a "mental breakdown" during his questioning of acting Director of National Intelligence Joseph Maguire. "He should resign, and some people even say it was treason," Trump added of Schiff.

Read More