The president criticised the press for "pouring over" his tweets "looking for a mistake", even though he had written "many best-selling books" and was proud of his writing skills. Besides the fact that Trump biographer Tim O'Brien quickly tweeted that the president did not write any of his books, Trump's latest tweet included a glaring typo: pour instead of pore.
Rowling, the award-winning author of the seven-book Harry Potter series, seemed to enjoy the president's take on his alleged writing prowess.
Trump's ghostwriter, Tony Schwartz, described the process of authoring Trump's "The Art of the Deal", revealing to The New Yorker that he wrote the whole book. The president pushed back against that claim, saying Schwartz was only a co-author.
The New Yorker quoted Howard Kaminsky, the former head of Random House, who said, "Trump didn't write a postcard for us!"
Folks on Twitter, including the official account for Merriam-Webster dictionary, lampooned Trump for writing a message celebrating his writing skills that included a mistake.
Soon after the initial tweet was sent, the message seemed to be deleted and replaced with a new one in which "pour" was replaced with "pore." Rowling still found the incident hilarious.