The code will appear only on CBS; viewers who tune in on a different channel will not see it. Mr. Trump and his allies fumed after the ABC debate, personally targeting the network’s moderators — Linsey Davis and David Muir — for the four times that they clarified falsehoods that Mr. Trump had uttered from the lectern. CBS appears intent on making Mr. Vance and Mr. Walz the stars on Tuesday, rather than the network or its on-air talent. “The goal of the debate is to facilitate a good debate between the candidates, and the moderators will give them the opportunity to fact-check each other in real time,” Ms. Milne said. CBS said it would remind viewers that the network’s approach to a debate is distinct from a one-on-one interview with a candidate, as on “Face the Nation.”

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Persons: ”, Claudia Milne, Norah O’Donnell, Margaret Brennan, Trump, fumed, — Linsey Davis, David Muir —, Vance, Walz, ” Ms, Milne Organizations: CBS, CBS News, ” CBS, CBS Evening, ABC