Closing arguments are coming up in the Federal Trade Commission's attempt to block the proposed merger of supermarket chains Kroger and Albertsons.

The federal government urged a U.S. District Court judge on Tuesday to temporarily prevent a proposed merger between Kroger and Albertsons, saying in closing arguments the combination would “almost certainly” benefit shareholders and not everyday shoppers.

Kroger argued its merger with Albertsons would lead to immediately lower prices for consumers, but the Federal Trade Commission said the supermarket merger would kill competition and harm the workforce.