Will Harris and Trump debate? What we know

Vice President Kamala Harris said she’s "ready to debate Donald Trump," but when and where that will take place is still unclear. 

"I think the voters deserve to see the split screen that exists in this race on the debate stage," Harris told reporters Thursday after landing at Joint Base Andrews following a trip to Indiana and Texas.

Harris also accused Trump of "backpedaling" away from a previous agreement for a debate hosted by ABC News on Sept. 10.

Vice President Kamala Harris and former President Donald Trump (Getty Images)

The Sept. 10 debate was one of two debates that President Joe Biden and Trump had agreed on. The first one was hosted by CNN on June 27, but Biden has since dropped out of the race and endorsed Harris as his successor.

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Trump has sent mixed messages on plans for an expected debate with Harris, first saying that he wanted Fox News, not ABC, to host the matchup he had originally scheduled for September with Biden. On Tuesday, Trump appeared to tweak that message again, saying on a call with reporters that he’d like to debate Harris "more than once" but not committing to appearing at the debate currently on the books and saying he’d only agreed to debate Biden twice, not Harris.

The first of those two scheduled debates was the impetus for Biden dropping out of the race and endorsing Harris as his replacement. Biden's disastrous performance on June 27 revived concerns that he was too old for a second term. His support within the Democratic Party crumbled. 

FOX News has invited both candidates to participate in a Sept. 17 debate in Pennsylvania, moderated by FOX News hosts Bret Baier and Martha MacCallum. 

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Harris did not respond to a question about having Fox News host a debate.

Alex Conant, a Republican consultant, told the Associated Press the debate could be "decisive." "It’s the only time voters really tune in," he said.

The Associated Press contributed to this report. 

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