The political philosophy of the Founding Fathers. The original philosophy of the
Republican Party which has somehow morphed into the abomination it is today. Small government, free trade. Pretty much everything the Republican Party would like you to believe they are but aren't.
Ron Paul is a libertarian, but since the libertarian party can't get enough momentum, he tried to run as a republican. But since modern day neo-conservatives are too stupid to see the libertarianism America came from he did not become president.