Is it in the water they drink? Is it a weird genetic anomaly that makes them lose sanity when this guy speaks? Maybe it is a brain thing, because when I hear him speak, all I hear is "wah, wah, waaaah, wah." Just like Charlie Brown's teacher or a bad fast-food drive-through speaker.
My one friend who (used to seem sane) happens be a Republican politician in CA said "You just don't understand. You really need to hear him speak in person. What you hear on TV has been manipulated".
It's weird, scary, and they can't be reasoned with whatsoever. Some are so bad that even if you hit 'em upside the head with a 2x4' it still wouldn't knock any sense into them. You just want to shake them and scream "This is your future. The future of your loved ones. His policies are of no benefit to you or your family. He goes against everything you say you believe in. He goes against the Bible you say you live by. You say you don't like liars. He's the biggest liar on the planet. You have friends who are black, asian, latino, etc. Your father, grandfather fought on our side in World War I and II. Your grandparents were immigrants." Nothing seems to make any difference or breaks through to that alternate universe they are living in.