President of the United States of America is one of the toughest and most important jobs in the world. That’s why it’s easy to think of the president as an incredibly serious person, but presidents have a sense of humor too! This became abundantly clear on August 11, 1984, when Ronald Reagan made a joke about attacking Russia, not realizing that his mic was on and he was being broadcast live. This one joke caused Russian leaders to put their military on high alert. Presidential Joke Day celebrates that incident and the funny things our presidents have said ever since.