Rick Santorum is regarded by many of his supporters as the “real” conservative in the GOP presidential race, and most Democrats pay him the unintended compliment of considering him an arch-conservative. Undoubtedly, Santorum is a conservative of a certain type, but how far to the right was his voting record during the three terms he spent in the United States Senate? To answer this question, I went to the American Conservative Union’s ratings archive for 2006, Santorum’s last year as a senator, and looked up the lifetime ratings of those who were in the Senate at that time. One could...