White House: Biden improving from mild COVID case

The US president's doctors said his mild COVID symptoms were improving and he was responding well to treatment, as the White House worked to portray the image of a president still on the job despite his illness.

In a lengthy briefing with reporters, White House press secretary said repeatedly that the White House had been as transparent as possible about the president's health. But she parried with reporters over specifics.

A White House official confirmed that Vice President Kamala Harris was also in close contact with Biden, and chief of staff Ron Klain said he was too. Klain said the White House wasn't aware of any positive COVID results linked to the president's case.