Russia launched 550 drones and missiles across Ukraine overnight in the largest aerial assault since the war began. The capital Kyiv was the primary target.

It was the latest in a series of almost weekly large-scale missile and drone attacks. President Trump said he “didn’t make any progress” with President Vladimir V. Putin of Russia.

A White House official said that a call was not scheduled to take place on July 3 with Ukraine's president, Volodymyr Zelenskyy. Trump had hoped to end the war between the two nations quickly after returning to office,