In theory, libertarians should be at least equally inclined to vote dem as rep. However, in practice, the majority seem to lean to the GOP. Hence, a libertarian candidate with high public visibility would likely cost the GOP candidate more votes than the dem candidate.Why wouldn't he take nearly as many votes away from Obama? He truly is a "social liberal" and many liberals are very unhappy with Obama since they didn't see it in 08. Also, Romney and Obama are the same to libertarians on stuff like the deficit and taxes... they both want to maximize revenue and increase spending and Romney always has and always will 100% support repeal of Pelosicare. Johnson could also cause Romney to win CO and maybe even CA (but that's really stretching it) because of the Marijuana issue, which is his pet issue like Dr. Paul's is the Fed and legal tender. Repeal of the Fed and replacement with nothing would probably put the state's growth to a halt because the Fed is the lifeblood of the state and the state is the lifeblood of wallstreet's continued growth.