That was insane. He looked like he was going to physically pop. His strategy is clear: pretend this is all about one perfect call, and then pretend everything negative that people are saying about the call is a lie, without actually defending the reality of what was said on the call. Schiff - fake account. Whistleblower - lying and didn't even hear it himself. The fake news - said there was a quid pro quo demanded 8 times and there wasn't.
What he wants is the Dems to let up on the transcript and say, "Well, what Schiff did was a mistake, but he said it was a parody, and wasn't claiming to be reading the exact transcript. And the Whistleblower may have gotten some of the information second hand, but what he's said has been confirmed. And no quid pro quo is necessary, and blah blah blah."
And suddenly, the story becomes about whether the media and the Whistleblower and Adam Schiff are lying, rather than about Trump extorting Ukraine with taxpayer funds for his personal benefit and the covering it up. One of the analysts on CNN even engaged with the quid pro quo argument by saying "perhaps you can argue that there was a missing verb for a quid pro quo, but anyone who reads it and understands the context knows..." And Trump has already gotten what he wanted.