Opponents of a measure to legalize medical marijuana in Arizona have seen their advantage shrink as election officials continue to count ballots.
As of Monday night, Proposition 203 is failing by about 3,500 votes out of more than 1.56 million votes counted.
The measure was losing by about 6,500 votes Monday afternoon before more updated totals were posted. However, thousands of early ballots and provisional ballots remain to be counted across the state and the initiative remains too close to be called by The Associated Press.
Medical marijuana proposals in 1996 and 1998 were approved but they never took effect. A more sweeping 2002 proposal lost.
This proposal would allow the use of the drug only for serious diseases including cancer.