US Attorney General William Barr was potentially exposed to the novel coronavirus at a White House reception where attendees didn't wear masks.br However, Business Insider reports Barr has refused to self-quarantine.br The September 26 reception for Supreme Court nominee Judge Amy Coney Barrett has since been identified as a possible superspreader event.br That designation came after several Republican lawmakers and White House associates announced they had tested positive for coronavirus.br Others present who now have COVID-19 are President Donald Trump, first lady Melania Trump, two GOP senators, and former New Jersey Gov. Chris Christie.