He's not a leading candidate, but Ron Paul does have a devoted group of libertarian followers. His view on trade, as I understand it, is that we should practice free trade, but we don't need trade agreements and international institutions to accomplish this. But this statement he makes about the threat from such agreements and institutions mystifies me:
Both the WTO and CAFTA could force Americans to get a doctor’s prescription to take herbs and vitamins. Alternative treatments could be banned.
Where does this idea come from? Usually, there is something underlying exaggerated criticisms of trade agreements, but here I can't figure out what it could possibly be.