The comment came during an interview with the Sirius XM radio host Howard Stern, who asked Biden whether he would participate in debates against Trump.

“I am, somewhere. I don’t know when,” Biden said. “But I’m happy to debate him.”

So far, Biden’s reelection campaign had declined to commit to participating in the debates, a hallmark of every general election presidential campaign since 1976.

The president himself had also been vague, saying in March that whether he debated Trump “depends on his behavior.”

Chris LaCivita, a Trump campaign senior advisor, quickly responded to Biden’s remarks on the social media site X: “OK let’s set it up!” The Trump campaign had said the former president is “willing to debate anytime, any place and anywhere,” although Trump did not participate in any of the Republican primary debates this cycle.

The Commission on Presidential Debates has already announced the dates and locations for the three general election debates between the presidential candidates: Sept. 16 in San Marcos, Texas; Oct. 1 in Petersburg, Va.; and Oct. 9 in Salt Lake City. The lone vice presidential debate is slated for Sept. 25 in Easton, Penn.

Biden engages in relatively fewer press interviews than his predecessors, and his aides tend to choose outlets and media avenues outside the traditional press corps that covers the president in Washington. His interview with Stern on Friday, which ran well over an hour, took on a conversational and introspective tone and spanned topics that included Biden’s upbringing, family, and his favorite president (Thomas Jefferson, Biden said).

Less the “shock jock” of old, Stern still commands a loyal audience. And he’s become known for his conversational interviewing skills. He can turn talks with celebrities into revealing discussions, often by asking things others might be afraid to, but not in confrontational ways.

Madhani writes for the Associated Press. AP writers Seung Min Kim and David Bauder contributed to this report.