Guaranteed Fetterman was provided the questions in advance and has spent the last week practicing his canned responses.
Who needs to practice a response. Fetterman will have what amounts to a laptop (PC) in front of him similar to the one he used for his recent TV interview. The excuse for him using a PC will be it helps overcome communication issues caused by his stroke. His PC will be preprogrammed with canned responses for any topic/question. The only thinking Fetterman needs to do is decide which topic to pick from his PC and provide a canned reply provided by his PC.