A petition in Alaska wants to put marijuana legalization to a vote.
The campaign, if successful, could widen the divide between Canadian and American policy.
Alaskans are today allowed to possess small amounts of marijuana in their own homes but the sale of marijuana is still a crime.
Supporters of an Alaskan campaign for legalization are circulating a petition to convince the government to hold a vote on the issue. State law requires 30,000 signatures for a question to be put to a statewide ballot.