In a Friday phone call, White House chief of staff Mark Meadows suggested to FDA Commissioner Stephen Hahn that his job could be on the line if his agency doesn't authorize emergency use of the Pfizer-BioNTech vaccine by the end of the day, sources familiar with the matter said.

"We don’t comment on private conversations, but the chief regularly requests updates on progress toward a vaccine," a White House official told ABC News.

Vaccine authorization by the FDA is expected imminently, as early as today.

ABC News’ Katherine Faulders and John Santucci contributed to this report.

Dr. Anthony Fauci told The New York Times that he'll “get vaccinated publicly, in the public space, so that people can see me getting vaccinated,” as soon as “the vaccine becomes available to me.”

Former Presidents Barack Obama, George Bush and Bill Clinton have all offered to get vaccinated on camera.

The Food and Drug Administration as early as today could authorize emergency use authorization for the Pfizer-BioNTech vaccine.

California reported 35,468 new cases on Friday and 12,940 hospitalizations, both record highs.

Gov. Gavin Newsom has issued stay-at-home orders to regions if their intensive care unit capacity falls below 15%. The San Joaquin Valley, Southern California and the Greater Sacramento region all have fallen below that threshold, while the Bay Area and Northern California have not.

ABC News’ Matt Fuhrman contributed to this report.

The U.S. has set new records for the most deaths in one week, the highest number of new cases in a week and the most Americans hospitalized in one week, according to ABC News’ analysis of COVID Tracking Project data.

In the past seven days, the U.S. has reported more than 1.4 million COVID-19 cases -- roughly equivalent to 142 Americans testing positive for the virus every minute.

Daily case numbers have been on the rise for nearly three months, increasing nationally by 480% since mid-September.

The U.S. broke a hospitalization record again on Thursday, surpassing 107,000 patients, a 6.5% rise from a week earlier. Fifteen states have reported record numbers since Sunday.

With the U.S. is now averaging over 2,300 new coronavirus related deaths a day, more Americans are dying from COVID-19 every day than ever before.

“We are in the timeframe now that probably for the next 60 to 90 days we're going to have more deaths per day than we had at 9/11 or we had at Pearl Harbor,” Centers for Disease Control and Prevention Director Robert Redfield said Thursday at an event hosted by the Council on Foreign Relations.

In the 9/ll attacks, almost 3,000 Americans died, and more than 2,400 were killed when Japan attacked Pearl Harbor in 1941.

ABC News’ Arielle Mitropoulos contributed to this report.

Hong Kong has installed vending machines for COVID-19 test kits in 10 subway stations across the semi-autonomous Chinese territory.

The regional government said it will be supplying about 10,000 self-administered test kits to the mass transit authority for distribution to the vending machines across all 10 stations daily, according to a press release.

Hongkongers can purchase the kits using their Octopus transit card.

A recent surge in COVID-19 cases has prompted Hong Kong authorities to tighten restrictions, including banning most social gatherings to just two people. Another 95 new cases were confirmed on Sunday, bringing Hong Kong's total to 6,898 cases with at least 112 deaths.