Democratic presidential candidate former Vice President Joe Biden speaks in Wilmington, Del., Wednesday, Sept. 2, 2020, about school reopenings. (AP Photo/Carolyn Kaster)

FILE - Chris Wallace, of "Fox News Sunday," left, interviews president-elect Donald Trump on Dec. 10, 2016 in New York. Two veteran journalists who now teach the craft say Wallace's interview with President Donald Trump on Sunday will be an example of excellence that they show their students. The interview, where Wallace asked the president some blunt questions and challenged some facts, was seen as an example of what can result from hard work and preparation. (AP Photo/Richard Drew, File)