Donald Trump is in Brussels for a NATO summit, and a video has emerged in which Trump makes his way to the front of a small group of leaders, shoving aside Montenegro Prime Minister Dusko Markovic in the process. Harry Potter author J.K.Rowling took the opportunity to criticize Trump for the behavior, calling him a “tiny, tiny, tiny little man” in a tweet that includes a video of Trump shoving Markovic to the side with his hand.

According to Business Insider, the small southern European country of Montenegro that sits on the Adriatic Sea just above Albania and across from Italy is scheduled to become NATO’s 29th member in June. After Donald Trump had pushed Markovic aside, he started conversing with Lithuanian President Dalia Grybauskaite.

Tara Palmeri, a White House correspondent for Politico, later tweeted that an unnamed White House official dismissed Trump’s shove as a “casual greeting he’s done many times before.”

Whether this is something Donald Trump has done many times before doesn’t change the fact that it doesn’t look very good for the President of the United States to go around shoving other foreign leaders aside so he can be the center of attention. The move suggests that Trump feels like he should be the center of attention and that everything is all about him. The fact that Donald Trump has a reputation for being an egotist doesn’t help matters. Perhaps that’s why J.K. Rowling decided to tweet her criticism.

J.K. Rowling has been a frequent critic of Donald Trump. It is clear the Harry Potter author is no fan of the current President of the United States. According to Time, Rowling mocked Trump earlier this month for tweeting about himself in the third person.

...Trump/Russia story was an excuse used by the Democrats as justification for losing the election. Perhaps Trump just ran a great campaign? — Donald J. Trump (@realDonaldTrump) May 3, 2017

I wonder whether Trump talks to Trumpself in the third Trumperson when Trump's alone. https://t.co/8CEzVTJjBq — J.K. Rowling (@jk_rowling) May 3, 2017

In December of 2015, BBC News tweeted a story explaining why people are comparing Donald Trump to Lord Voldemort, the main villain of her Harry Potter novels. Rowling took issue with the comparison.

“How horrible,” Rowling’s tweet said. “Voldemort was nowhere near as bad.”

J.K. Rowling even pointed out a particularly egregious spelling error in one Donald Trump tweet that he later deleted.

J.K. Rowling is not the only person who took issue with Trump’s shoving of the Montenegro Prime Minister. Keith Olbermann weighed in with an apology to the world and an assurance that “we’re working on the problem.”

Time for my HOURLY apology to the world for @realDonaldTrump (shoving Montenegro PM). We're working on the problem pic.twitter.com/dkmY1jliXc — Keith Olbermann (@KeithOlbermann) May 25, 2017

It’s safe to say this won’t be the last time J.K. Rowling takes to Twitter to criticize Donald Trump. It’s clear that the creator of Harry Potter feels nothing short of utter contempt for the President of the United States, and there is no shortage of people worldwide who share her feelings. While criticism of Trump could potentially alienate some of her fans who may be supporters of the President, there may be others who aren’t huge fans of her writing but adore her for speaking her mind about a polarizing political figure like Trump.

Donald Trump has toned down his propensity for engaging in Twitter battles with celebrities since being elected, so it is unlikely he will respond to J.K. Rowling’s tweet. It is also unlikely he will address his behavior in Brussels, and we certainly won’t be seeing an apology for it. Some people might hope that due to the criticism he’s receiving, Donald Trump will change his behavior and never again push a foreign leader aside to get to the head of a crowd, but perhaps they shouldn’t get their hopes up. Donald Trump seems to think this kind of behavior is perfectly fine, and he’s not likely to change anytime soon. J.K. Rowling will be waiting.

Donald Trump and Theresa May at the NATO Summit. [Image by Dan Kitwood/Getty IMages]

[Featured Image by Chris Jackson/Getty Images and Dan Kitwood/Getty Images]