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TALLAHASEE (CBSMiami/NSF) - Two-thirds of voters in the state say they support a proposed constitutional amendment that would broadly legalize medical marijuana.

That's according to a Florida Atlantic University poll which found 67 percent of voters support Amendment 2 on the November 8th ballot, while about 30 percent oppose it. That would be enough support to top a 60 percent threshold for approving constitutional amendments.

A similar ballot proposal failed in 2014, when it received 58 percent of the vote.

The poll of 500 likely voters was conducted from Friday to Sunday and has a margin of error of 4.3 percentage points.

The News Service of Florida contributed to this report.