I don't know enough about Fetterman's past to make a judgement on how his stroke affected him, but you totally could. Brain damage can fundamentally change who you are as a person on every level, from memory to logic, or even spirituality. It can change or entirely destroy your ability to feel empathy, damping some emotions while amping up others. Strokes that fundamentally change personality like that are rare, but certainly not outside the realm of possibility.

Strokes can break your brain and fundamentally change your personality and values. Idk if that actually happened here or if he was always actually a piece of shit. It doesn't matter ultimately. He's a shithead now.

Actually, that’s kinda what these neuroscientists are finding happens.

Nah, they're all having one while slurping up that Faux trooth.

I say this as someone with a lot of experience diagnosing and treating strokes....

You'd be surprised how cruel and violent some people can become after them.

I've seen the sweetest little grandma turn into a full on support for genocide nazi after one. More than once.