President Joe Biden and his top diplomats, including Secretary of State Antony Blinken, had sought closure during his term.
Qatari and Hamas officials say a last-minute dispute in cease-fire talks between Israel and Hamas has been resolved.
Qatar's Prime Minister Sheikh Mohammed bin Abdulrahman bin Jassim Al-Thani met with Hamas on Wednesday to finalise a Gaza truce deal, a source close to the talks told AFP.