Obama voters helped push marijuana measure to victory, experts say

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FILE - In this Oct. 26, 2010 file photo, marijuana plants flourish under grow lights at a warehouse in Denver. Shreveport resident Missy Matthews is keeping a close eye on the Arkansas medical marijuana ballot initiative. Arkansans will decide Nov. 6 whether patients with a limited number of chronic conditions can use marijuana with a doctor's recommendation. (AP Photo/Ed Andrieski, File) Photo by