Trump's special envoy said gaining the release of Edan Alexander, believed to be the last living American hostage held by Hamas, was a "top priority."

U.S. and Israeli officials are trying to brush off several days of behind-the-scenes tensions over the Trump administration's unprecedented talks with Hamas ahead of crucial Gaza negotiations this week.

The U.S. Special Presidential Envoy for Hostage Affairs said Sunday that he was "cautiously optimistic" after his meeting with Hamas that hostages still being held in Gaza would be released. Envoy Adam Boehler said discussions included the release of the last living American hostage,