Here is the latest Iowa news from The Associated Press at 3:40 a.m. CDT

DES MOINES, Iowa (AP) — An Iowa court official has ordered an independent investigation into a retired state judge who admitted that he allowed attorneys on the winning side to ghost-write opinions in at least 200 cases. State Court Administrator Todd Nuccio appointed Senior Judge Robert Hutchison and retired court administrator David Boyd to review retired Plymouth County Judge Edward Jacobson’s admission last year that he requested opinions from attorneys on one side of cases without the knowledge of the other side.

DES MOINES, Iowa (AP) — Iowa Attorney General Tom Miller says Democrat Theresa Greenfield doesn’t legally qualify to be on the June 5 primary ballot for the state’s 3rd Congressional District. Miller offered his legal analysis Wednesday, shortly before Iowa Secretary of State Paul Pate released a certified primary candidate list that didn’t include Greenfield. Greenfield didn’t qualify for the ballot this month after she failed to submit enough public signatures.

HIAWATHA, Iowa (AP) — Ron Corbett says he’s filing a legal challenge against an elections panel’s ruling that booted him off the Republican primary ballot for governor. Corbett told reporters Wednesday in Hiawatha he wants a judge in Polk County district court to review his case. A campaign spokesman later said Corbett filed an administrative review. A three-person panel determined Tuesday that Corbett failed to submit enough signatures from the public to qualify to run against Gov. Kim Reynolds.

DES MOINES, Iowa (AP) — A central Iowa restaurant owner has agreed to pay nearly $834,000 to 64 employees the federal government says were not adequately paid. The U.S. Department of Labor filed a federal lawsuit against Gloria Ochoa alleging she violated minimum wage requirements by requiring servers to cash their paychecks and return the money, in cash, back to the restaurants in addition to giving up $20 from their daily tips.