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.

via Trump threatens to bring Gennifer Flowers to debate — WTKR.com

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.

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.

A message left with Flowers through a website she operates was not immediately returned.