One day out from the election, here's where the latest polling on the five ballot measures stands. The initiatives in California and Massachusetts appear to be heavily favored to pass, with recent polls indicating support approaching or exceeding 60 percent in both states. The Nevada and Maine legalization measures are favored, but by smaller margins. And polls show a statistical dead heat on the ballot measure in Arizona.

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California

The latest poll, by USC Dornsife and the Los Angeles Times, show 58 percent of voters favor the measure while only 37 percent oppose it. The average of all polls on the question conducted since Sept. 1 shows 56 percent support for the measure, 32 percent opposed to it, and 8 percent undecided.

The ballot measure has been riding high in the polls all year, with every single survey on the question showing majority support. Support has been so consistent that a failure to pass the legalization proposal in California would be the only truly surprising outcome among all five state legalization measures.

Nevada

Recent polls in Nevada have shown divergent outcomes, illustrating the power of different assumptions and methodologies that different pollsters apply to these questions. Support for the measure has been muted in two Bendixen & Amandi International polls, barely achieving a plurality of likely voters. But polls conducted by KTNV- TV 13 and Rasmussen at the same time show more robust support.

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And a separate Suffolk University poll at the end of September showed support for the measure approaching 60 percent. Taken together, the five surveys conducted since September show an average of 51 percent support for the measure and 40 percent opposition to it.

Arizona

Polls indicate Arizona is the one true toss-up among the five legalization measures under consideration. Across six surveys conducted since Sept. 1, the measure has crossed the 50 percent threshold only twice. Averaged out, the numbers show 47 percent support, 46 percent opposed and 7 percent undecided. The direction those undecided voters take will determine the fate of the measure. On ballot measures like this one, undecided voters often break toward the status quo.

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Maine

Maine is tough to judge as only two polls on the marijuana measure have been fielded since Sept. 1. Both show majority support for the measure, averaging out at 52 percent in favor and 40 percent opposed. That's enough to make legalization the most likely outcome, but with only two data points the numbers here aren't as robust as they are in other states.

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Massachusetts

Massachusetts may be the most interesting marijuana contest on the ballot this fall. Political leaders across the party spectrum have urged voters to reject it. The Boston Archdiocese of the Catholic Church gave $850,000 to fight the measure, the largest-ever donation from a religious group on any side of a marijuana initiative. As recently as the spring and summer support for legalization in Massachusetts appeared to be lagging behind the four other states, hovering in the low-40 percent range.

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But starting in the fall that began to change. Every poll conducted from September onward has shown legalization with majority or plurality support. The latest, conducted by Western New England University at the end of October, gives supporters a nearly 30 percentage point edge over opponents.

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Overall, the legalization measure enjoys an average of 54 percent support over the latest six polls, with only 35 percent opposing it.

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There's more than full legalization on the ballot this year, too. Voters in four other states are considering various medical marijuana provisions. In Florida, a reprise of 2014's failed medical pot initiative appears to be doing much better this go-round, with polls showing well over the 60 percent support needed for passage.

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Montana voters are deciding whether to roll back a number of restrictions the legislature recently placed on the state's long-standing medical marijuana laws. Only one poll has been conducted on that question, in October, and it showed that a majority of voters were happy with the new restrictive provisions.