I'm a Constitutionalist. I'm just someone who believes in the Constitution, and who votes for people who he believes will support it. I frankly would like to start a Constitutionalist party. The Libertarians are close, but are way out in left field with the legalisation of drugs, in my opinion.
Edited to add that I am NOT thinking of the Constitution Party, which is what Liberty put forward. Sheesh! I've been saying I'm a Constitutionalist for years... No offense, but I'm just going to have to think of another way to categorize myself. I generally vote Republican.