Supporters of medical marijuana in Missouri have hired a prominent political consultant to help with a campaign to put a proposal on the 2016 ballot.

New Approach Missouri's new consultant Jack Cardetti met this week with marijuana advocates at an event at Busch Stadium.

Cardetti worked on Democratic Gov. Jay Nixon and Secretary of State Jason Kander's campaigns.

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Cardetti says New Approach Missouri plans to hire people to collect enough voter signatures to get the medical marijuana proposal on next year's ballot.

Medical and recreational marijuana proposals failed in 2012 and 2014 to collect enough signatures.

National Narcotic Officers' Associations' Coalition Vice President Jason Grellner says he doesn't think there's voter support for marijuana measures in Missouri.

But hiring Cardetti and signature collectors could boost the medical marijuana campaign.

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