Representative Michael R. Turner, who drew criticism last week after releasing a cryptic statement about a new threat, said he wanted to avoid “an international crisis.”
His death united world leaders and demonstrators in grief, but it also left Russia without a charismatic counterweight to its leader’s increasingly repressive policies.
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.