Two single mothers are among a group of low-income adults who on Thursday sued Missouri Gov. Mike Parson’s administration for dropping plans to expand Medicaid.

The two moms and a third woman asked a Cole County judge to force the state to give them coverage under the government health care program, as called for in a constitutional amendment approved by voters last year.

Two of the women who sued the state are poor enough that their children are covered by Medicaid, but they still make too much — at most $12 an hour working full-time — to get government health care insurance themselves under Missouri’s current rules.

The plaintiffs argued in the lawsuit that they need the health insurance program to get treatment for illnesses including asthma and diabetes.

At issue is the Republican governor’s announcement last week that he’s dropping plans to expand the program after the GOP-led Legislature refused to provide funding to cover the newly eligible adults.

Before the constitutional amendment passed, the plaintiffs “lacked access to healthcare that, in some cases, is a question of life and death,” according to the lawsuit.

“But with the passage of Medicaid Expansion, Plaintiffs and more than 275,000 other Missourians gained the promise of health care benefits under the MO HealthNet,” the plaintiffs’ attorneys wrote in the lawsuit.

They argued that the administration has “broken that promise.”

The plaintiffs also asked that the lawsuit cover the rest of the estimated 275,000 adults who are newly eligible for the program.

Spokespeople for Parson and fellow Republican Attorney General Eric Schmitt declined to comment on the pending lawsuit Thursday.

Missouri’s Medicaid program currently does not cover most adults without children, and its income eligibility threshold for parents is one of the lowest in the nation at about one-fifth of the poverty level.

Plaintiff Melinda Hille, who has diabetes and thyroid disease and is unable to work, has to choose between medical treatment and food, according to the lawsuit.

Stephanie Doyle, who works full time and has three children, can’t afford treatment for her eczema and has been hospitalized for severe flare-ups.

The last plaintiff is Autumn Stultz, another single mother who works a part-time, minimum-wage job. She can’t afford to go to the doctor and has untreated asthma, according to the lawsuit.