...Because the caucus process is absolutely backwards. It uses non-anonymous voting, for god sakes. Sophisticated democracies adopted anonymous voting centuries ago for really good reasons -- in particular it limited the ability to pressure people before and after their vote. So no one should be surprised that a stupid system without anonymity designed to allow voters to "persuade" people voting for someone else over to their side results in stories of coercion and fraud. Iowa should not be the first primary, not the least because of the damn ethanol issue but also because their process is archaic.