While medical marijuana will be the group’s top priority, supporters also will look at other potential changes in marijuana laws, Morfeld said. Those could include such ideas as legalizing the recreational use of marijuana and expunging the records of people convicted of marijuana crimes.

The level of popular support will determine what the group puts forth, Wishart said.

“The priority is medical marijuana,” she said. “We don’t want to put that in jeopardy.”

To get their proposal on the 2020 ballot, the group would have to collect signatures from 10 percent of the state’s registered voters, or about 122,000 people.

The Medicaid expansion proposal only needed signatures from 7 percent of registered voters because it was a proposed law instead of a proposed constitutional amendment. Petition organizers collected 136,791 signatures on the Medicaid expansion proposal. Of those, only 74 percent or 104,477 signatures were certified as valid.

Previous, home-grown marijuana petitions in Nebraska have failed to get enough signatures to make the ballot and have lacked the financial backing to hire signature collectors.