President Obama is nominating John Koskinen, a former official at Freddie Mac and a corporate turnaround specialist, as the next commissioner of the Internal Revenue Service, the White House said Thursday.

“John is an expert at turning around institutions in need of reform,” the president said in a statement. “With decades of experience, in both the private and public sectors, John knows how to lead in difficult times, whether that means ensuring new management or implementing new checks and balances.”

Koskinen would replace acting commissioner Danny Werfel, who was appointed in May after revelations about political targeting at the agency forced the resignation of Stephen Miller, the acting IRS commissioner at the time.