Advocates of legalizing medical and recreational marijuana are planning a wave of new ballot measures in coming years few years, buoyed by wins scored this year's midterm elections in swing and conservative states.

Supporters say they are likely to field measures in states like Ohio and Arizona in 2020, and potentially in Florida and North Dakota. They say plans are underway for initiatives to legalize medical marijuana in Mississippi, Nebraska and South Dakota.

“2020 provides an opportunity to run medical marijuana and legalization campaigns across the country. Typically, presidential elections offer better turnout and a more supportive electorate,” said Matt Schweich, deputy director of the Marijuana Policy Project. “I’d be surprised if there weren’t a large number of initiatives being run — statutory, constitutional, legalization, medical marijuana. It’s going to be a big opportunity for our movement to build momentum.”

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Voters in Michigan this year approved Proposal 1, which would set up a regulatory framework for recreational marijuana sales and use. Michigan is the ninth state to allow recreational use, and the only state outside the West and the Northeast where recreational use will be legal.

In Missouri and Utah, voters last Tuesday approved new measures allowing medical marijuana. Oklahoma voters approved their own medical marijuana measure earlier this year. Thirty-three states allow medical marijuana use.

“We won our first state outside of the coasts, and I think there’s a strong feeling that we’re sort of on the downhill of the tipping point,” said one strategist who has worked on legalization measures, who asked for anonymity to describe future plans.

Voters in North Dakota rejected a ballot measure that would have allowed recreational marijuana use. North Dakota became the third state in recent years, after Arizona and Ohio, to reject recreational use.

The strategist said legalization backers have settled on a reliable formula that has generated success at the ballot box. The template includes language allowing adults to grow a small number of marijuana plants in their own home, banning advertising aimed at children and controlling potency of products like edibles that make it to market.

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The measures in North Dakota and Ohio did not closely follow that template; the Ohio measure, which did not earn support from the largest groups that back legalization campaigns, went so far as to parade a marijuana leaf mascot — named Bud — around campaign events before it went down in a crushing defeat.

Opponents of marijuana legalization said they have turned their focus to another provision typically found in successful ballot measures, one that allows counties and municipalities to ban pot shops even if recreational marijuana is legal statewide.

“In all states with legalization, the majority of towns and cities that have voted have banned pot shops,” said Kevin Sabet, who heads the drug policy group Smart Approaches to Marijuana, which opposes legalization. “We … think we can get a majority of counties to opt out of pot shops in Michigan.”

A Pew Research Center survey conducted in October showed 62 percent favor legalization — including majorities among Millennials, members of Generation X and the Baby Boomer generation.

Drug legalization is one of the few issues where men take a more liberal stand than women. The Pew Research survey showed 68 percent of men, and just 56 percent of women, support legal pot.

The Utah measure that passed this year is especially notable, Schweich said, because the Republican-dominated state legislature is now likely to take up its own medical marijuana measure. That measure will likely be more conservative than the ballot proposition voters approved, but it will still mark the first time a conservative legislature has approved marijuana use.

“You’re going to see a very conservative state adopt, via its legislature, a medical marijuana law,” he said. “We’ve really showed that any state, no matter how socially conservative it might be, can have medical marijuana.”

The legislative action in Utah is a prelude of what marijuana legalization backers hope becomes the next front in their fight. Not every state allows citizens to change laws via ballot measure; in some states, any change will be up to the legislature.

Two Democratic governors have indicated they would support legalization if the legislature forwards a bill to their desks. New Jersey Gov. Phil Murphy (D) ran into opposition from some Democratic legislators during his first session in office but Illinois Gov.-elect J.B. Pritzker (D) has said he supports legalization.

“We’re going to run out of ballot initiative states. The wins on the ballot initiative front really increase our momentum with legislative work,” Schweich said.

States where medical marijuana is already legal, but where recreational use is still prohibited, are likely to be targets of those legislative pushes. Twenty states allow medical, but not recreational, use.

“The template is, get medical passed first, and then pass recreational,” the pro-pot strategist said.