A fourth Republican challenging U.S. Rep. Doug Lamborn’s bid for a seventh term in the June primary has made the ballot, state officials announced Friday.

Tyler Stevens, a former Green Mountain Falls mayor, successfully petitioned into the primary by submitting 1,223 valid signatures from district Republicans, Colorado Secretary of State Wayne Williams said in a release. It takes 1,000 signatures to get on the ballot.

In addition to Lamborn, Stevens joins state Sen. Owen Hill, El Paso County Commissioner Darryl Glenn and retired Texas state judge Bill Rhea on the primary ballot in the heavily Republican 5th Congressional District.

Lamborn won a spot in the primary by petition but is facing a court challenge seeking to remove him. The Colorado Supreme Court is expected to rule next week on the lawsuit, which charges that some of Lamborn’s signatures were gathered by paid circulators who weren’t Colorado residents, as the law requires.

The Democrats have settled on a candidate for the seat – Stephany Rose Spaulding, an associate professor of Women’s and Ethnic Studies at the University of Colorado Colorado Springs.

Stevens, who has served as mayor or town trustee of Green Mountain Falls for 20 years, owns Complete Kitchens in Colorado Springs and is a medical captain for the Green Mountain Falls/Chipita Park Fire Department. He’s the vice president of the Teller County EMS Council.

Colorado’s primary election is June 26. For the first time, unaffiliated voters will be able to cast ballots without having to sign up with either major party.