DAY 335: Omicron becomes the dominant Covid strain in the U.S.
President Biden is expected to address the nation Tuesday as Covid-19 cases soar ahead of the holidays. The White House also revealed he had a close coronavirus exposure but has tested since negative. And as cases rise, the NHL has decided to pause their season until after Christmas. Meanwhile, there is fallout on Capitol Hill from Sen. Manchin’s announcement that he would not vote for the Build Back Better bill. Courtney Subramanian, A.B. Stoddard, Joyce Vance, Dr. Peter Hotez, Juanita Tolliver and Matthew Dowd join.