ABC News:

In an angry conversation on his final day as president, Donald Trump told the chairwoman of the Republican National Committee he was leaving the GOP and creating his own political party — and that he didn’t care if the move would destroy the Republican Party, according to a new book by ABC News Chief Washington Correspondent Jonathan Karl.

Trump only backed down when Republican leaders threatened to take actions that would have cost Trump millions of dollars, Karl writes his upcoming book, “Betrayal: The Final Act of the Trump Show.”

I enjoyed Karl’s last book and will be reading this one. I just finished the Woodward one — which was typical Woodward. His sources (like Milley and Barr) are the heroes; their enemies the goats. At least Woodward’s was more entertaining than Michael Bender’s book, which droned on about minutiae of campaign intrigue until you were ready to pull your hair out. Karl’s last one was great and I look forward to this one.

But this story, like so many Trump stories, is both wholly believable and tells you nothing you did not know about his personality, one on hand . . . but on the other, likely reflects a temporary rash of infantile anger as opposed to a Serious Plan. Of course Trump would have started a third party if the GOP had turned its back on him. He doesn’t care about the party or its success one whit. But the party instead embraced him, with all his election kookery and so forth. So he stayed.

Like Trump, the story is entertaining, but ultimately does not amount to much.

But it is amusing how diehard Republicans will shrug this off, like they shrug off every shred of proof that Trump does not care about anyone or anything but himself.