This is a nice quick piece by Jim Quinn from the U of Penn's Wharton School.
He quote's Ron Paul;
Pretending that a true difference exists between the two major candidates is a charade of great proportion. Many who help to perpetuate this myth are frequently unaware of what they are doing and believe that significant differences actually do exist. Indeed, on small points there is the appearance of a difference. The real issues, however, are buried in a barrage of miscellaneous nonsense and endless pontifications by robotic pundits hired to perpetuate the myth of a campaign of substance. The truth is that our two-party system offers no real choice. The real goal of the campaign is to distract people from considering the real issues. Those candidates who represent actual change or disagreement with the status quo are held in check by the two major parties in power, making it very difficult to compete in the pretend democratic process. This is done by making it difficult for third-party candidates to get on the ballots, enter into the debates, raise money, avoid being marginalized, or get fair or actual coverage.
It's difficult to say it any better.
