I have this one thing to add. Strangely enough, I haven't seen or heard anyone write or say anything about it.
If it had been up to the old-fashioned nominating process, the crazies wouldn't have been on the ballot.
The Tea Party was behind nominating some Republican candidates with very extreme views. The two most prominent were Sharron Angle for the Senate in Nevada and Christine O'Donnell for the Senate in Delaware.
(If you want to read about some of their views, use your most favored search engine. I'm too lazy to post them here and I'd don't want such idiotic views taking up space in my blog.)
To get their nominations, Angle beat Sue Lowden, a former state Republican party chairman, while O'Donnell beat Mike Castle, a former U.S. Representatives.
It's no coincidence that they were nominated in a direct primary, because they wouldn't have gotten close if the decision had been left to a party-wide convention.
Sure, back in the past there were some shady deals done in back rooms far from public view and full of cigar smoke. But by God, the party bosses did not nominate any crazies for office.
Both ladies, thankfully, lost.