it would take an overwhelming majority of states decriminalizing and/or legalizing before the feds would even consider thinking about reversing their stance on weed. no viable presidential candidate will even speak in whispers about it until the states have made it obvious to them that the people are steadfastly behind the idea. the stakes are far too high and the price of failure far too costly for anyone to even bring up the notion an a national scale.
for those of you who still believe that we can regain any form of control in this matter through democratic means, local and state legislation is probably your only logical venue.

i'm getting tired of being the spoiler on this subject, but i can only call 'em like i see 'em