Fox News host John Roberts has labelled May Day, also known as International Workers’ Day, a non-recognised holiday, as a "communist" holiday. While not officially recognized as a federal holiday, May Day commemorates the 1886 nationwide strike that resulted in violent protests. Roberts criticizes the city of Chicago for encouraging students to participate in May Day demonstrations. Despite efforts to change the date of the official federal holiday of Labor Day from September 1 to May 1, these efforts have been unsuccessful.