On September 9, President Joe Biden announced new requirements for the vaccine against COVID-19. While doctors praised the move intended to slow the spread of the deadly virus, experts believed it was “too little” and “too late.” GOP members called the announcement “unconstitutional.” The move mandating jabs for 100 million Americans, including federal contractors, health care workers, private sector employees, and the great majority of federal workers, marks Biden’s most expansive action to date.