Liberal Party of Canada pledges to legalize marijuana.
Several state Democratic parties have endorsed marijuana legalization, but neither the national Republican or Democratic parties have added legalization to their national platforms at this time. In that regard, Canada has advanced past the U.S., as the Liberal Party has added marijuana legalization to its agenda.
From Vice:
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n an attempt to sweep up the green vote, Liberal leader Justin Trudeau announced this week that if elected, his party will work to legalize marijuana right away.
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Trudeau has previously said pot prohibition has resulted in 475,000 people with criminal records since the Conservatives came into power in 2006, and criminalization of the drug costs the justice system $500 million a year. But until now, the Liberal leader has kept relatively quiet on the issue while on the election trail even when his political adversaries have taken swipes at him with pot jokes.
http://marijuanapolitics.com/liberal-party-is-poised-to-win-canadian-elections-legalize-marijuana/