By Sophie Tatum

PHILADELPHIA (CNN)– Donald Trump threatened Saturday to bring Gennifer Flowers, with whom Bill Clinton admitted to having a sexual relationship decades ago, to Monday’s presidential debate.

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The taunt is a response to prominent Trump critic Mark Cuban’s plans to sit in the front row of the debate at the invitation of Hillary Clinton’s campaign. It’s the Republican nominee’s latest public reference to the 42nd president’s infidelity, which he has occasionally cited in his campaign to criticize his Democratic challenger.

“If dopey Mark Cuban of failed Benefactor fame wants to sit in the front row, perhaps I will put Jennifer Flowers right alongside of him!” Trump tweeted Saturday afternoon.

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He soon deleted the original message and tweeted again with the correct spelling of Flowers’ first name.

Cuban quickly shot back via Twitter, mocking Trump for allegedly referring to the two of them as the “Bobbsey Twins,” a term referencing the long-running children’s book series about wholesome siblings.

“Donald. Remember when you told me on the phone we were “Bobbsie Twins” and I laughed ? #truestory,” wrote Cuban.

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Trump on Monday had told Fox News’ Bill O’Reilly that if Clinton “treats me with respect, I will treat her with respect.” His tweet Saturday came roughly an hour after The New York Times endorsed Clinton for president.

Flowers, a former Arkansas state employee, said she had a 12-year sexual relationship with Bill Clinton during his 1992 presidential run. He later admitted under oath in 1998 to a sexual encounter with her.

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Cuban has tried to publicly shame Trump throughout the 2016 campaign, regularly slamming the Republican nominee for not releasing his taxes. The attacks have been particularly effective, given Cuban’s status as a fellow billionaire and his public persona as a similarly brash businessman.

He cheered his invitation by the Clinton campaign to attend Monday’s showdown.

“Just got a front row seat to watch @HillaryClinton overwhelm @realDonaldTrump at the “Humbling at Hofstra” on Monday. It Is On!” Cuban tweeted on Thursday.

Monday night’s debate will take place at Hofstra University in New York.

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