Many of his admirers seem to be on the anti-war left. I’m not a big fan of this group, but would like to see at a minimum Paul do well enough to inject some of his ideas into the broader discussion.
Here’s my idea: register as Republicans and vote for him in the primary. Whoever the Libertarian candidate is is irrelevant, and Obama will get the nod for the Democrats in any event. You certainly won’t get anyone to his left.