Donald Trump says he would be willing to debate Kamala Harris on the friendly environs of Fox News in September - but the vice-president has not signed on to what would be a switch-up.
Trump had previously agreed to appear on ABC News and debate Joe Biden a second time this year before the president ended his re-election campaign.
In a statement on his Truth Social platform, Trump said the debate would be held on 4 September in Pennsylvania. The former president said that there was a conflict of interest at play after filing a defamation lawsuit against ABC and network host George Stephanopoulos over the anchor's assertion that Trump had been "found liable for rape" in the E Jean Carroll case.
Trump earlier this year was ordered to pay $83m for defamatory statements he had made about the magazine columnist after an earlier case found him liable for defamation and sexual abuse.
The former Republican president added that the site of the debate on Fox News - which is generally welcoming to the GOP - had not been determined. But he said the moderators would be Fox News' Bret Baier and Martha MacCallum, and the rules would be similar to his 27 June debate with Biden - except that this time there would be a studio audience.
But on Saturday, in a statement that invoked Trump's previous challenge to debate Biden at any time or place, Harris's campaign made clear she did not agree to the terms of the proposed Fox News debate. And she particularly rejected using that debate to replace the ABC one.
"Donald Trump is running scared and trying to back out of the debate he already agreed to and running straight to Fox News to bail him out," Harris campaign spokesperson Michael Tyler said in a statement shared on X by NBC News political correspondent Yamiche Alcindor.
"He needs to stop playing games and show up to the debate he already committed to on [10 September]. The vice-president will be there one way or the other to take the opportunity to speak to a prime-time national audience. We're happy to discuss further debates after the one both campaigns have already agreed to.
"Mr Anytime, anywhere, any place should have no problem with that unless he's too scared to show up on the 10th."
In a post on X, Harris herself added: "It's interesting how any time, any place' becomes 'one specific time, one specific safe space.'"
The vice-president said in July that she was "ready" to debate Trump and accused him of stepping back from the previous agreement involving ABC.
In a post on Saturday, Trump alleged that Harris was "afraid" to "do a REAL debate" against him. He added: "I'll see [Harris] on September 4th or I won't see her at all."
Democratic party alarm at Biden's June debate performance on CNN set in motion his dramatic withdrawal from the race, with polls indicating he was likely headed for a blowout electoral defeat.
Trump and Harris are now polling neck-and-neck.
The political dance over presidential debates is now set to escalate. Earlier this year, Biden and Trump agreed to sidestep the typical arrangement of three debates, typically held in the fall and organized by the bipartisan Commission on Presidential Debates.
Democrats said reducing the number to two and moving them up to June and September reflected changes in the "structure of our elections and the interests of voters".
Biden said he had won two debates with Trump in 2020 and challenged him to two this year. "I hear you're free on Wednesdays," Biden said, referring to a weekly off-day during the New York criminal trial that saw Trump convicted of falsifying business records in connections with hush-money payments to the adult film actor Stormy Daniels.
But that decision ultimately backfired for Biden.
The latest twist in the 2024 debate drama comes after Trump said he would not face Harris because she was not the party's official candidate. On Friday, Harris secured enough Biden delegates to officially become her party's nominee.
At a rally in Atlanta on Tuesday, Harris said she welcomed a debate against Trump, who days earlier had called her a "bum".
"As the saying goes, you got something to say, say it to my face," Harris said.
