1. Old communist style - votes are counted, but there is only one party on the ballot, and/or the penalty for voting for opposition parties is imprisonment or death.

2. Sham democracy style - multiple parties on the ballot, but the country's leader has enough power to falsify the results.

In states where the republicans have a lot of control, they might be able to move the results one or two percentage points. Given how close the 04 election was, some shenanigans in Ohio was all that was needed (whether or not the results actually were tainted). In 2000, Florida was so close it was within the margin of error (even within the margins of the best possible design of an election system, in my opinion); from there, the local power apparatus finished the job.

The disenfranchisement of fellons is another issue.

A few other things to keep in mind - Obama is pro business. He is not a left wing radical. McCain is unstable - to the point where I think the business community is worried. Thus I don't see a reason to expect higher levels of corruption than we've had indicators of in the past two elections.

you are the media you consume.