President Biden has tested negative for COVID

President Biden tested negative for COVID-19 on Saturday, according to a letter from White House physician Dr. Kevin O'Connor, but he will continue to isolate himself until he tests negative a second time.

Biden's tweet included a photo of a rapid COVID-19 test with the line showing a negative result.

Thanks to Doc for the good care, and to all of you for your support, the president's tweet said.

Biden tested positive for the coronavirus on July 21.