I have a degree in Speech Pathology. Joe does not stutter.
Found this interesting article on FR by someone who listened to 45 hours of Biden speaking to examine his history of childhood stutter. It was first publicized by Biden’s autobiography. Article author thought Biden’s handlers used his stutter to cover for Biden’s as a cover for his dementia.
https://revolver.news/2022/05/joe-biden-supposed-childhood-stutter/