The implementation of the Gaza ceasefire and hostage deal “better be done before I take the oath of office,” US President-elect Donald Trump said Thursday, as he reiterated his claim that the agreement would not have been possible without the work of his incoming administration.

Trump has repeatedly indicated he would prefer to avoid inheriting the Israel-Hamas war as he prepares to take office on January 20, and analysts say his impending return to the White House had injected renewed urgency into negotiations on a deal that had effectively been on the table for months.

“If we weren’t involved in this deal, the deal would have never happened. No deal would have happened, and the hostages would never have probably seen life again, but they certainly wouldn’t have been released for a long time,” Trump told The Dan Bongino Show podcast.

Trump and outgoing US President Joe Biden both took full credit following the announcement of the ceasefire deal Wednesday after the two American administrations worked together to mediate the truce.

The cooperation between the two camps was “almost unprecedented,” a senior Biden administration official said after the deal was clinched, made possible by a rare intersection of interests between bitter rivals who both saw an opening following Trump’s election victory.

However, asked by a reporter whether he or Trump deserved credit for the deal, Biden replied, “Is that a joke?”

Biden’s response was “ungracious,” Trump told The Dan Bongino Show.