In honor of Presidents’ Day, the current head of state, Donald Trump, thought he would fire off a tweet to commemorate the holiday, so on Monday morning we got this:

First of all, the proper spelling is “Presidents’ Day,” not “President’s Day.” The way Trump spelled it implies that the day belongs to just one president. The correct spelling makes it clear that the day is meant to honor all U.S. presidents.

But it was the very fact that Trump found it necessary to weigh in that seemed to most irritate others on social media. Take a look: