 from covid that's the word from the white house physician as biden remains in delaware where he is self-isolating dr kevin o'connor says the president tested positive again today and has taken his sixth dose of paxlovid to help with his symptoms those include a loose non-productive cough and hoarseness the update comes as the biden campaign is rejecting calls to drop out of the race at least 36 congressional democrats including four senators have called on biden to step aside