A White House social media account said the surprise Air Force One flight was part of a Halloween event hosted by the president and the first lady.

© Alex Kent/The New York Times

Tensions have risen between the United States and Cuba as the Trump administration tries to force the island’s Communist government to make drastic changes.

© Doug Mills/The New York Times

The call from the president about the Starshield network came after officials in Ukraine reported that they found new limits on the use of military drones in their war against Russia.

© Brendan Hoffman for The New York Times