The U.S. defense chief urged Ukraine’s allies to “move at the speed of war” to get more and heavier weapons to Kyiv as Russian forces rained fire on eastern and southern Ukraine amid new fears the fighting could spill over the country’s borders. Clayton Neville offers an update on that.

Three out of every 5 people in the U.S. now have antibodies from a previous Covid-19 infection with the proportion even higher among children, demonstrating how widespread the virus was during the winter omicron surge, according to data from the Centers for Disease Control and Prevention. John Stolnis breaks down those numbers for us.

We continue our conversation with Maya King of the New York Times, this time highlighting the Georgia Senate race.