The Pot Legalization Ticket?

Friedersdorf talks up the Libertarian duo aiming for the White House:

It's an opportune moment for a libertarian ticket to offer a serious, forceful critique of drug policy, for beyond fortuitous changes in public opinion, there's an incumbent with broken promises and a lackluster record on the issue; and a Republican challenger who is even more of a drug warrior in his avowed positions and such a teetotaller personally that he eschews even caffeine. 

Are [former New Mexico governor Gary] Johnson and [California judge Jim] Gray the right team to make this critique? Whatever their shortcomings, they're ideal in this respect: one is an extreme athlete and health nut; the other is a veteran, former prosecutor, and judge who used to be a drug warrior and switched sides based on what he saw in his own courtroom. Can they succeed in injecting the issue into the general election campaign?