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.

WASHINGTON (AP) — President Donald Trump has removed former U.S. Rep. Billy Long as IRS commissioner less than two months after his confirmation, a White House official said Friday.