On Dec. 10, 2016, the Fox News anchor Chris Wallace spent several hours interviewing Donald J. Trump for an episode of “Fox News Sunday.” Mr. Wallace spoke with Mr. Trump at Trump Tower in Manhattan and then flew with Mr. Trump and his advisers to the Army-Navy football game in Baltimore, where their conversation continued.

In the broadcast, which aired the next day, Mr. Wallace pressed the president-elect about Russian intervention in the 2016 election, his unorthodox cabinet appointments and why Mr. Trump believed it was ethical to maintain his private business interests while in office.

One exchange between the two men did not make the cut: a question about Michael G. Flynn, the son of Mr. Trump’s choice for national security adviser, Lt. Gen. Michael T. Flynn. The younger Mr. Flynn had been fired from the transition team days earlier for spreading incendiary conspiracy theories on social media.

Why that exchange never aired is now a question in political circles. It emerged this week that Stephen K. Bannon, Mr. Trump’s former campaign manager, told the special counsel’s office in 2018 that “Fox agreed to cut out that part of the interview” after it was deemed “embarrassing for Trump.” The Mueller report summaries were released after a Freedom of Information Act lawsuit from BuzzFeed News and CNN in 2019.