From
http://www.lewrockwell.com/block/block102.html
The main indication of the new conservative orientation of the Libertarian Party (writing this last phrase, I confess, was very irksome; but the truth is the truth) was of course the election of Bob Barr as its presidential candidate, and of Wayne Allyn Root for vice president.
Why do I say this? That question is equivalent to asking why I consider both of these men to be conservatives, not libertarians; well, okay, conservative libertarians. In some sense, this claim of mine is difficult to defend, for, surely, there is a gradation between these two views; there is no hard and clear distinction to be made between libertarianism and conservatism. Certainly, there are conservative libertarians, and libertarian conservatives. How, then, simply, to distinguish Barr and Root from "real" libertarians?
I suggest two litmus tests: foreign policy and drug legalization. Lord knows, libertarians disagree on many things. Heck, if you get 10 libertarians into a discussion, you’ll have 10 different opinions on many things, maybe even 11. But, there is unlikely to be any difference of opinion on the importance of ending U.S. foreign imperialistic interventionism, right now, and legalizing drugs, all of them, immediately. Both are clear violations of the libertarian non-aggression axiom, if ever there were any.
How, then, do Barr and Root stack up on these two questions. At the convention, neither would clearly and unambiguously commit themselves to the libertarian position on either of these two questions. Both avoided a clear commitment to pulling U.S. troops, all of them, out of the some 730 military bases now located in roughly 130 different countries around the globe. They evaded questions attempting to elicit clear positions on these two issues. On the drug question they both hid behinds states’ rights: it is not a federal issue; they are running not for state but federal office; therefore, let the states decide. In any case, they would only commit themselves to medical marijuana, not its recreational use, and legalization of anything stronger would certainly be anathema to them. On foreign policy, they would only make "major" troop withdrawals, not total and complete ones.
Since Ron Paul, a member of the Republican Party, not only embraces these two planks, but makes them central elements of his candidacy for that party’s presidential nomination, we have arrived at an anomalous pass where a prominent member of the GOP is more libertarian than the two standard bearers of the LP. Who would have anticipated such a sorry state of affairs? Who would have thunk it? Poor Murray Rothbard must be spinning in his grave.