This week, John Fetterman, the Democratic for the Senate from Pennsylvania, appeared in what NBC News billed as his first on-camera, one-on-one interview since he had a stroke in May. The interview went well and was conducted with Mr. Fetterman and the reporter, Dasha Burns, sitting in the same room, as Mr. Fetterman used a captioning system on a computer screen to assist him with his auditory-processing, something he has needed help with since the stroke. Ms. Burns introduced the interview to the news anchor Lester Holt by saying, “In small talk before the interview without captioning, it wasn’t clear...