The below is from MoveOn.org. Who knows if it'll work, but it's worth a try.
You've probably heard about the "superdelegates" who could end up deciding the Democratic nominee.
The superdelegates are under lots of pressure to come out for one candidate or the other. We urgently need to encourage them to let the voters decide between Clinton and Obama — and then support the will of the people.
I signed a petition urging the superdelegates to respect the will of the voters. Can you join me?