It's really not worth arguing with them. They are particularly notorious for posting in political threads in extraordinary acts of bad faith, particularly when it the topic is about leftist politics. So any time the topic turns to Ilhan Omar, AOC, or Sanders, they're around to say some disengenuous and usually pretty problematic shit. They've long since eschewed deserving any benefit of the doubt. I'd suggest just reporting, ignoring, and moving on. On-topic: I'm still having a hard time taking the creation of this thread seriously after the previous one jumped straight to "he's a liar." This is just nothing of any substance. Nothing posted here has really raised any major red flags, and at worst it seems just like some slightly poor optics.