Trump has 'no ideology' except 'his own personal interest': Top Democrat

"The only consistent theme seems to be he’s pro-Trump," Schiff said.

"It doesn't make me question that because I think all of us recognize that outreach for what it is, and that's purely transactional, purely something that will come up from time to time when the president decides it's in his personal interest to work with Democrats," Schiff said. "This is a president, look, who has no ideology."

Sometimes the president's "personal interests" will align with the national interest, the California representative said. “And we shouldn't cut off our nose to spite our face where they do align, where it makes sense for the American people. We should take advantage of that transactional opportunity."

Schiff continued, “It is distressing, though, to have a president that, frankly, will tweet and retweet things as juvenile as that. It doesn’t help him in terms of his stature, it doesn’t help in terms of the stature of our whole country.”

He also said the Trump administration should “admit" that former President Obama’s administration "did some things right.”

"I don't know why it it's so hard for this administration, whether it's on climate or on Iran or on our strategy of defeating ISIS, to acknowledge that the prior administration did some things right," Schiff said. "We can certainly make improvements on what the last administration did, but they did lay some important building blocks."