Ex-ethics chief: Trump's 'stable genius' tweet would cause boards to question CEOs' mental stability
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Former Office of Government Ethics Director Walter ShaubWalter Michael ShaubSolicitor general could take over Mueller probe if Rosenstein exits News station criticized for publishing 'smear' about man killed in his apartment by off-duty officer Former ethics chief, a vocal Trump critic, joins watchdog group MORE ripped President TrumpDonald John TrumpCorker: US must determine responsibility in Saudi journalist's death Five takeaways from testy Heller-Rosen debate in Nevada Dem senator calls for US action after 'preposterous' Saudi explanation MORE's tweet Saturday saying he was "very smart," claiming the tweet would be enough for corporate boards to hold an emergency meeting on a CEO's mental health.

"Forget the book. This might be enough to lead the board of any corporation to call an emergency meeting on its CEO’s mental status," Shaub wrote, quoting the president's tweet.

Shaub, who clashed with the president over his business interests, resigned from his government post last year.


Trump fired off several tweets Saturday morning defending his mental fitness after the topic bubbled up this week following author Michael Wolff's new tell-all book, "Fire and Fury: Inside the Trump White House."

The book includes a claim that concerns about Trump's mental fitness are shared even among his top aides.

“My indelible impression of talking to them and observing them through much of the first year of his presidency, is that they all — 100 percent — came to believe he was incapable of functioning in his job,” Wolff wrote.

The White House has hit back against the claim, calling it "outrageous." 

"It's absolutely outrageous to make these types of accusations and it's simply untrue, and it’s sad that people are going and making these desperate attempts to attack the president,” White House press secretary Sarah Huckabee Sanders told "Fox & Friends" on Friday.