The proposed merger between grocery giants Kroger and Albertsons has been fought in U.S. courts for months, and a trial in Denver District Court just wrapped up arguments.

Grocery workers are stuck watching the cases unfold as the retailers battle regulators in three separate court cases.

A decision is pending in a trial in Oregon in which the Federal Trade Commission sued to block the merger until it can resolve its administrative complaint against Kroger and Albertsons. The attorneys general of Arizona, California, the District of Columbia, Illinois, Maryland, Nevada, New Mexico, Oregon and Wyoming joined the lawsuit.

The trial in the merger of Kroger and Albertsons has wrapped up after three weeks of hearings in King County Superior Court.

After three weeks of testimony, closing arguments were heard Friday in the Colorado antitrust trial regarding the planned nationwide merger of Kroger and Albertsons. Though Kroger only operates 11 grocery stores in Alabama,

Two Kroger executives took the stand Monday in Denver District Court saying a merger with Albertsons is the key to competing with Walmart.

Colorado Attorney General Phil Weiser is suing to block the $25 billion merger on the grounds it will raise prices and be bad for shoppers. Kroger and Albertsons argue the merger is necessary to compete with the likes of Amazon, Walmart and Costco.

The state attorney general sued in February to block Kroger’s proposed $24.6 billion purchase of Albertsons that would merge two of the state’s largest grocers.

Closing arguments wrapped up in the Kroger Albertsons merger trial.

Supermarket giants Kroger and Albertsons have been locking horns with Colorado’s attorney general for nearly three weeks as the companies defend their $25 billion merger in Denver district court.