President Trump’s pick to head the Labor Department, Florida law school dean Alexander Acosta, picked up a notable union endorsement just several hours after the nomination was announced Thursday.

The International Union of Operating Engineers said it was “pleased” with Trump’s nomination of Acosta, who was an assistant attorney general for civil rights during President George W. Bush’s administration and a former U.S. attorney for the southern district of Florida. He also served on the National Labor Relations Board from 2002-3, and he had been a law clerk for Samuel Alito before Alito was named to the Supreme Court.