People over-estimated the Repub base. "Trump is a sideshow, will never do well in polls". Um, see the graphic. Skyrocketing.
They WANT a rude, loud, angry, birther that is willing to absolutely WRECK other repubs in the race with personal attacks.
The GOP base loves chaos and hates illegals. And voila, trump has it all. Marketing BRILLIANCE on his part, knowing the target market and delivering the exact product they desire.
