A pro-Kremlin narrative implicating Kyiv takes hold among some conservative influencers, as tech leaders testify on the Hill about foreign meddling in the U.S. election.

At Tuesday’s debate, Mr. Trump repeated his claim that he can end the war and refused to say if defending Ukraine was in America’s national security interests.

Ukrainian drones hit an ammunition depot inside Russia this week, the latest attack targeting military facilities deep within the country.