A federal judge in the Southern District of Florida has blocked a proposed settlement in President Donald Trump’s lawsuit against the IRS and the Treasury Department, finding the case was pursued for an “improper purpose” and referring the lawyers involved for possible disciplinary review.

A federal judge in Washington has delivered an unusually sharp rebuke in litigation tied to President Donald Trump, ruling that a $10 billion lawsuit against the Internal Revenue Service was brought for an improper purpose and appeared aimed at giving legal cover to a settlement that would grant special benefits to Trump-affiliated parties.

The ruling goes beyond dismissal or adverse merits findings.