How are half the dems bat **** insane, you ask? It's the simple scale of left to right. It works like this:
Bat **** insane (far left), naive (moderately left), Indifferent (dead center), selfish (moderately right), and soulless power monger (far right).
Granted, this is a cynical and probably hateful view on humanity, but it doesnt make it any less true.
As for pelosi being a nutter, her ideas are absurdly stupid (lets pull all troops, and not worry about a plan), and she is definitely not mild mannered or civil. They say the craziest of people speak the loudest, silencing the voices of the majority. From what I've seen over the past couple weeks, if there's anyone who will ruin the democratic party, it will be her.