It is my understanding (I'll know more tonight), that the voter must present the card and then can caucus for his/her candidate. [ Parent ]
Letting just anyone challenge voters creates a potential for voter intimidation and suppression.
The question I have (as with everyone else) is how far up the ladder this thing goes. It could be just a local/isolated -- probably some local Obama organizer screwed up, and didn't get all their observers certified, so they made copies of the Obama letter and handed them out to people.
But it may well go farther than that -- remember the whole protest over the Nevada caucuses? That was due to the Obama campaign not reading the rules in total, and sending out false information regarding when people had to show up to participate. So its entirely possible that someone higher up in the campaign screwed up, and thought he could get away with just giving out letters from Obama to his observers, rather than getting them certified in advance. [ Parent ]
Make a new account