Vice President Kamala Harris tried to reassure European and Ukrainian leaders that America would come through with security aid. But worries persist as House Republican leaders block the measure.
The death of Aleksei A. Navalny in a Russian prison has been a blow to an opposition movement in which he was the figurehead. But it has also raised hopes of a united front against President Vladimir V. Putin.
Toward the end of Russia’s long assault, hundreds of civilians still remained in Avdiivka. Those who escaped in the last weeks spoke of relentless devastation.
American spy agencies are divided on whether Moscow would go so far, but the concern is urgent enough that Secretary of State Antony J. Blinken has asked China and India to try to talk Russia down.