Dad obsessed with proving people wrong

I have to avoid basic conversation because even if I just briefly mention something he will try to "win". Literally everything is an argument to him (a side effect of binging the news 24/7) and he always has to have the last word. Since he's obsessed with politics, he Uturns any conversation into it. Literally anything. I've tried talking with him about this and what does he do? He sends me a 9 page article from some obscure "patriot" site that proves me wrong. Now he's in that stage of "Why does nobody like me".