The anonymous White House official who wrote of a “resistance” movement working to save the nation from Donald Trump’s worst impulses makes a stunning claim in their upcoming book: that members of the Trump administration once considered doing something brave. In A Warning, which describes the president as a cruel, narcissistic buffoon and seems to be aimed at readers who’ve been in a coma for the past four years, Anonymous writes that in 2018, top Trump officials weighed resigning en masse in an attempt to sound alarms about their boss, but ultimately declined to do so out of concern that their “midnight self-massacre” could leave the government even more debilitated.

“I am not qualified to diagnose the president’s mental acuity,” the author writes, according to excerpts of the book obtained by the Washington Post. “All I can tell you is that normal people who spend any time with Donald Trump are uncomfortable by what they witness. He stumbles, slurs, gets confused, is easily irritated, and has trouble synthesizing information, not occasionally but with regularity. Those who would claim otherwise are lying to themselves or to the country.”

The purported near-exodus is the headline claim of the anonymous senior Trump official’s forthcoming tell-all—a rehashing of the president’s defects that have been obvious to most people since he entered the public eye. Framed as a call to vote Trump out of office next year, the book is the latest to dish on the behind-the-scenes of his out-of-control presidency, and is likely to be about as effective as those that came before it. Works by Omarosa Manigault Newman, Michael Wolff, and Bob Woodward have put forth similar portrayals of the Trump administration’s dysfunction, but have failed to move the needle in any meaningful way. The anonymous author, who penned a 2018 New York Times op-ed identifying themselves as part of a cadre of administration officials working to subvert Trump from the inside, likely believes their status as a “senior Trump administration official” will give their warning more weight.

The anonymous official burst into the spotlight last year via their op-ed, which described a “two track presidency.” “It may be cold comfort in this chaotic era, but Americans should know that there are adults in the room,” they wrote. “We fully recognize what is happening. And we are trying to do what’s right even when Donald Trump won’t.” A Warning expands on that, per the Post, describing instances of Trump’s questionable mental acuity: