I would  vote for him.   He is a libertarian that claims republican status...  I wish more would.   A strong libertarian contingent in the republican party would help it.
Let the democrats go more and more left and the republicans go more libertarian and then we would have a two party system that made sense and gave us a lot more choice.
As it is now..  all you can really do is make sure that the democrats don't get in.
lazs