BUFFOONS DON'T BELONG IN PUBLIC OFFICE
Elect a crackpot into office, expect to be inundated with idiotic babbles. Give a certifiable lunatic a megaphone in the public square, she'll blow everyone's eardrums with deranged prattles. Nincompoops can't help themselves, they'll always behave like the fool that they are.
That an entire political party can be so easily overrun by myriads of numbskulls is, however, a political mystery that'll take political scientists years to unravel.