As the Democrats begin their convention, a theme has emerged. They are going to try to paint a McCain presidency as a third term of George W. Bush. While this is an understandable strategy, I think it is bound to fail. Anyone who has paid even a little bit of attention to American politics in the last 10 years knows that there is a stark difference in the approach and policies of Bush and McCain. Beyond that, it's not a secret that the two of them don't even really like each other personally. McCain is not Bush, and it's a big mistake for Democrats to sell Americans short by not being more honest about their opponent. There are reasons not to vote for John McCain. This is not one of them.