On Labor Day the first of September, activists in Tampa held one of the “workers over billionaires” 50501 protests that took place from coast to coast on that day. These protests called attention to Trump’s connections to billionaires and the “Donor Class” and partially to the origins of Labor Day.
Labor Day was originally a celebration of union power, source of among other things the weekend and the (now less and less common) 8 hour workday. The original day for this was Mayday, but the US ruling class so feared Mayday’s revolutionary connotations they created a separate holiday diverting attention off revolutionary elements.