Someone who believes in the principles of limited government, sound classical economic policy, and/or federalism. See founding fathers. Except Jefferson. Screw Jefferson. DO NOT SEE Neoconservative, i.e. who believes in the principles of a socially active federal government that avoids any discussion of economic theory.
I may be a conservative, but don't hold it against me, its only because I have read an economic textbook before.
Liberal: Don't elect him, he's a social facist!
Conservative: That may be true, but what does that have to do with me being a politician?