President Trump’s removal of Billy Long as head of the IRS after only two months on the job has cast an uncomfortable spotlight on the agency, which already churned through six different leaders this year.

Billy Long ended his brief tenure as IRS commissioner Friday, posting on X that President Donald Trump will nominate him to be ambassador to Iceland.

It was not immediately clear why Long was dismissed. His quick exit makes him the shortest-tenured IRS commissioner confirmed by the Senate since 1862.