Whenever I stumble into a political conversation with someone who prefers to live in an alternate news reality, I find it effective to not argue back at them, but rather out-flank them: inform them that not only are they correct, but also I read that insert-like-minded-improvised-obviously-ridiculous-nonsense-here and say it with all sincerity ... and then let them respond with "Well ... I'm not sure about that ..." and then insist it's true "because I saw it on Faceboook somewhere" ... and then repeat until they realize they have been out-crazied.