Democratic gubernatorial candidate Jared Polis said Thursday he plans to take two approaches to getting on Colorado’s June primary ballot – by going through the caucus and assembly process and by gathering petition signatures.

He’s one of five leading Democrats running for the office held by term-limited Gov. John Hickenlooper. Two of the others – Lt. Gov. Donna Lynne and businessman and civic leader Noel Ginsburg – have said they’ll try to get on the ballot by petition, while former State Treasurer Cary Kennedy announced last week she’ll go through caucuses, and former state Sen. Mike Johnston hasn’t revealed his plans.

“This truly is a people-powered campaign, and I’m so grateful to have earned the support of so many Coloradans,” Polis said in a statement. “Since we launched our campaign, I’ve been blown away by the incredible support from hardworking Coloradans across our state, from Grand Junction to Fort Collins and from Alamosa to Yuma. Voters across Colorado have been energized by our bold plans for the future, like universal pre-K, making Colorado 100-percent energy renewable by 2040, and building an economy that works for everyone. Working together, there’s no limit to what we can do for Colorado.”

There is a limit to how many candidates can emerge from caucuses and assembly onto the primary ballot. Candidates need to get at least 30 percent of delegate votes, meaning at most three – but more typically two – will emerge that way. Both major parties hold precinct caucuses across the state on March 6, and both have scheduled their state assemblies for April 14.

Statewide candidates can also land a spot on the ballot by collecting 10,500 signatures from fellow party members – 1,500 from each of Colorado’s seven congressional districts. Candidates can start circulating petitions Jan. 16, and they’re due back March 20.

In the 2016 Republican U.S. Senate primary, four candidates managed to qualify for the primary ballot via petitions, although only one made it without trips to court to force election officials to count some of their signatures. One of them, former state Rep. Jon Keyser, made the ballot despite complaints his petitions included forged signatures and the signature of at least one voter who died before she supposedly signed. That’s one reason lawmakers decided to require election officials will verify individual petition signatures this year.

Also new this year, following the passage of Initiative 108, unaffiliated voters will have the chance to cast ballots in either the Democratic or Republican primaries.

Nine Republicans are running for Hickenlooper’s seat, including former U.S. Rep. Tom Tancredo, State Treasurer Walker Stapleton and Attorney General Cynthia Coffman.