 And President Biden continues to isolate with COVID amid growing calls for him to bow out of the presidential race. At least 36 congressional Democrats, including four senators, are now pressuring him to step aside. Biden is spending the weekend in Delaware, where he's still taking Paxlovid for symptoms. The latest update from White House physician Dr. Kevin O'Connor says the president tested positive again today, but is otherwise steadily improving. Biden released a statement saying he looks forward to returning to the campaign trail.