Illegal voters are NOT a myth.
That is what I am most afraid of.
The only state that concerns me on the fraud is Pennsylvania, and I think the fix is in with Rendell. I believe he will tell the hacks to stay home on Tuesday. The Clintons have one more chance at the White House if he loses, and they want it.
Indiana, Nevada, and Iowa all have voter ID laws, which will minimize the fraud opportunity. I think the Indiana Attorney General is going to have Gary, Indiana crawling with poll watchers at every precinct and hotlines for fraud.
In addition, I think it motivates the base to GOTV in these states to provide cushion.