Georgia’s state Supreme Court on Wednesday refused to approve rules for a new commission to discipline and remove state prosecutors, meaning the commission can’t begin operating.

Some Republicans in Georgia want the new commission to discipline or remove Fulton County District Attorney Fani Willis for winning indictments of former President Donald Trump and 18 others.

In an unsigned order, justices said they have “grave doubts” about their ability to regulate the duties of district attorneys beyond the practice of law. They said that because lawmakers hadn’t expressly ordered justices to act, they were refusing to rule one way or the other.