Actually, Woodward had a good response to that but Trump did not include it in his tweet.

Here is more from The Guardian:

Members of the administration including the defense secretary James Mattis (who Woodward says compared Trump to “a fifth- or sixth-grader”) and chief of staff John Kelly (who said to have called Trump an “idiot” and working for him “Crazytown”) – have disowned remarks attributed to them by Woodward.

But in the book, a copy of which was obtained by the Guardian, Woodward pre-empts Trump’s charge about anonymous sources. His interviews, he writes, were conducted “under the journalist rule of ‘deep background’. This means that all the information could be used but I would not say who provided it.”

Many scenes in Fear are recounted in direct quotes, and seem to communicate the experiences of among others former chief of staff Reince Priebus, former White House strategist Steve Bannon, former staff secretary Rob Porter and former chief economic adviser Gary Cohn.

In the same note, Woodward writes: “President Trump declined to be interviewed for this book.”

Woodward, 75, made his name with Carl Bernstein, reporting on the Watergate scandal that brought down Richard Nixon. He appeared on NBC on Monday, telling Today his reporting on the Trump White House was “not anonymous”.

“It gives a date, it gives a time, who participates, most often the president himself and what he says,” Woodward said.

He also said he had “never seen an instance when the president is so detached from the reality of what’s going on”.

If I have to choose between Donald Trump and Bob Woodward when it comes to truthfulness it will only take me a nanosecond to make the obvious choice. 

Especially since he seems to back up virtually every other book and article that has been written about the Trump Administration. 

Clearly, this book got under Trump’s tangerine stained skin and along with that anonymous op-ed is pouring gasoline on his already smoldering paranoia. 

I imagine that the White House is much like an abandoned minefield right now, where staffers fear every step will cause another explosion.

Oh well, they could always leave. And then maybe, you know, write a book.