In late April, Minneapolis city attorneys received a document alleging that a high-ranking veteran officer within the Minneapolis Police Department had been punished by his superiors for providing damaging information to a law firm investigating the conduct of Police Chief Brian O’Hara.

Among other things, the whistleblower alleged that the chief’s longtime driver, officer Abdisamad Ahmed, was tasked with cleaning up his boss’ messes — ranging from intimate affairs with subordinates to repairing a crashed city vehicle “off the books” after a purported drunken driving incident.

On multiple occasions, according to the document — a draft 32-page lawsuit never filed in court but obtained by the Minnesota Star Tribune — Ahmed bragged “that he was ‘untouchable’ and had O’Hara ‘by the balls’” because he possessed incriminating text messages.

Two weeks later, Mayor Jacob Frey nominated O’Hara for a second term. City officials say Frey didn’t know about the document at the time of the announcement.