A prosecutor-punishment commission Donald Trump and his allies could use to target Fulton County District Attorney Fani Willis took a hit this week when the Georgia Supreme Court refused to sanction its rules, according to a new report.

In an order issued Tuesday, the justices declined to approve rules and regulations proposed for the Prosecuting Attorneys Qualifications Commission, signed into law earlier this year by Gov. Brian Kemp, the Atlanta Journal-Constitution reported.

“We have grave doubts that we have the constitutional power to take any action on the draft standards and rules,” the order reportedly states.

“The most prudent course for us is to decline to take action without conclusively deciding any constitutional question.”