Rep. Adam Schiff Adam Bennett SchiffOvernight Defense: Top admiral says 'no condition' where US should conduct nuclear test 'at this time' | Intelligence chief says Congress will get some in-person election security briefings Overnight Defense: House to vote on military justice bill spurred by Vanessa Guillén death | Biden courts veterans after Trump's military controversies Intelligence chief says Congress will get some in-person election security briefings MORE (D-Calif.) in a Sunday show interview said the United States has “a seriously flawed” person occupying the White House, referring to President Trump Donald John TrumpHR McMaster says president's policy to withdraw troops from Afghanistan is 'unwise' Cast of 'Parks and Rec' reunite for virtual town hall to address Wisconsin voters Biden says Trump should step down over coronavirus response MORE.

“The big question for us, though, is you know, plainly we have a seriously flawed human being in the Oval Office,” Schiff said on CNN’s “State of the Union.”

“Will those flaws be allowed to permeate the whole of government?”

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Schiff, the ranking member of the House Intelligence Committee, said he does not think anyone is shocked by the revelations in Michael Wolff’s new book, “Fire and Fury: Inside the Trump White House,” about how Trump's inner circle views the president's capability to do his job.

“I don't think there is anyone in Congress, frankly, of either party, who does not concur at least privately with those observations and concerns,” Schiff said.

“Certainly, very few are willing to express them publicly in Congress and I think that's to the detriment of our institution.”

Trump on Saturday defended his mental fitness, suggesting he is “a very stable genius.”

“Actually, throughout my life, my two greatest assets have been mental stability and being, like, really smart. Crooked Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE also played these cards very hard and, as everyone knows, went down in flames,” Trump wrote on Twitter.

“I went from VERY successful businessman, to top T.V. Star ... to President of the United States (on my first try). I think that would qualify as not smart, but genius....and a very stable genius at that!”