For me, what has sort of worked it pointing out that both sides of the news are getting basic facts wrong - things where there shouldn't even be a debate. If the news was true, you could watch any channel - it would all be the same. Instead, we get things like one side claiming murders are up and the other claiming murders are down. Our current journalism is a failure of a system designed to drive engagement/viewership/clicks rather than convey knowledge.
I also find it helps to remind them that we're Americans first, party second. The other side isn't stupid, they're just getting a completely different set of 'news'.
