Chainsaw, "Politician says what I want to hear" is supposed to be the minimum they need to do to earn your vote, it's not supposed to mean you immediately agree to throw your basic sense and values into the garbage. I don't believe it's likely, but it's entirely possible that he's literally a fucking CIA plant they wanted to use to help steer voters on the left. His backstory could certainly align with that. Restless son of successful parents, joined the military to see action and got out and joined up with Blackwater to see more action. That's certainly a type of guy intelligence agencies like to recruit. But he said the right words about Gaza and used the term "oligarch" and now you're just gonna overlook all that plus a nazi death camp guard tattoo? A tattoo he clearly lied about and is only now removing while basically saying "fuck you if you got offended but yeah I guess I'll get rid of it"?
Again, this is not the redemptive arc you want it to be. He hasn't apologized, he hasn't demonstrated any growth, etc. He just said a few of the right things about a couple of topics you care about and you're willing to disregard a thousand red flags? You think the state that has re-elected fucking Susan Collins a hundred times is going to agree with you on this?