Maine health officials discovered that a majority of Moderna vaccine shipments received across the state on Monday were not kept adequately cold during transport, meaning 4,400 doses may have to be thrown out.

Dr. Nirav Shah, director of the Maine Center for Disease Control and Prevention, made the announcement during a "sad and somber" coronavirus briefing on Tuesday and said the problem extends to other states as well.

President Trump on Tuesday released an unrepentant virtual farewell address to the nation, describing himself as the "only true outsider ever to win the presidency," ahead of his reluctant departure from office Wednesday.

As a former international correspondent who covered a dozen wars and revolutions, I know the signs of civil strife. And now, I see the battle lines being drawn up in my own family's text-messaging groups, in heated email exchanges and, more chilling, in the refusal to discuss politics at all just to preserve a common bond.

Updated at 8:02 p.m. ET

Steven Brandenburg, the Wisconsin pharmacist accused of intentionally trying to spoil hundreds of COVID-19 vaccine doses last month, has been charged with attempted criminal damage to property.

As President Donald Trump prepared to leave office, his Department of Energy was celebrating that a new analytical lab was “ready to operate” at the Hanford Site in southeast Washington.

The lab, being largely constructed by DOE contractor Bechtel National, Inc. is part of a low-level radioactive waste treatment facility meant to make glass logs out of the hazardous goo.

President-elect Joe Biden is under pressure to walk away from his pledge to block the Keystone XL oil pipeline. On Tuesday, Canadian Prime Minister Justine Trudeau said completing the project is a key priority for him.

The push to vaccinate more people against Covid in Washington is putting health care providers in an interesting situation.

Dr. Chris Dale, the chief quality officer at Swedish Medical Center in Seattle, says the uncertainty about supply has some hospitals holding onto Covid vaccines so they have enough to administer second doses, while others are giving as many first shots as they can.

Joe Biden and Kamala Harris are being sworn in as the president and vice president of the United States. Watch the ceremony, inaugural address and other celebratory events throughout the day, beginning around 8 a.m. PT.