We have a long history of voter fraud in America. The Kennedy "election" would not have occurred without fraud in Illinois.

There are strong indications of fraud in both the last two elections, so why not expect it to appear again?

Neither party is opposed to trying to manipulate the vote. The republicans do their best to suppress the vote in poor and black areas and the Dems. Will stuff ballot boxes etc. when given the chance.

I am not too concerned about Acorn's voter registration fraud. Registering nonexistent voters is one thing, but actually recording a vote for such fraudulent registrations is much more difficult in most jurisdictions.

The best possible outcome this election would be a major, undisputable victory. Then we need a bipartisan commission to come up with solid voter registration and vote recording mechanism to be implemented nationwide.
Including a solid paper trail for every vote cast. In this age of, that should be very easy.