This is one of those cool ones that you setup with what issues matter most to you first, then answer in scales to return percentage match comparisons. It will tell you how you compare with McCain, Nader and Obama, which for me was 72, 39 and 32 percent respectively. Then you can select people who are no longer running from a list, which it seems to fill from most to least matched, and see how they compare if you’d like. My highest was Fred Thompson, at 79%, and lowest was Joe Biden, at 31%.
Take the quiz at Glassbooth.