Mediators say Israel and Hamas have agreed to a pause in fighting in Gaza and to begin releasing the hostages held there.
President Joe Biden and his top diplomats, including Secretary of State Antony Blinken, had sought closure during his term.
After months of deadlock, Israel and the militant group Hamas reached a fresh Gaza ceasefire and hostage release agreement.
Qatari and Hamas officials say a last-minute dispute in cease-fire talks between Israel and Hamas has been resolved.