https://www.msn.com/en-us/news/opinion/john-fetterman-tells-maher-that-near-death-experience-freed-him-to-speak-out-says-progressivism-left-me/ar-BB1nS49V

From the article:

The liberal comedian then asked Fetterman whether his shift in various policies had anything to do with his recovery from his 2022 stroke, asking if his near-death experience had given him a “freedom.”

“Absolutely,” Fetterman responded. “There’s a line from the first ‘Batman,’ Joker’s like ‘I’ve been dead once already. It’s very liberating.'”

“It’s freeing in a way. And I just think after beating all of that, I just really [want to] be able to say the things that I have to really believe in and not be afraid of if there’s any kind of blowback.”

So basically yes, the stroke made him a Republican. Pathetic and disappointing, but all too predictable.