In a move that will give President Donald Trump a chance to send yet another Texan to the U.S. Court of Appeals for the Fifth Circuit, he's nominating one its longtime Texas members Ed Prado to become U.S. Ambassador to Argentina.

Prado was appointed to the Fifth Circuit in 2003 by then-President George W. Bush and previously served as a U.S. District Judge in San Antonio, the U.S. Attorney for the Western District of Texas and as an assistant public federal defender. He is known among appellate lawyers as one of the more moderate members of a very conservative Fifth Circuit. Prado did not return a call for comment.

Prado's nomination presents an unusual situation for the Fifth Circuit as federal judges are rarely considered for ambassador posts.

“It's somewhat unprecedented from what I understand,” said Carl Stewart, chief judge of the Fifth Circuit, who notes that Prado will not be allowed to serve as a judge and an ambassador at the same time.

“I would expect that once his nomination gets past the Senate Foreign Relations Committee, then he would leave the federal judiciary,” Stewart added.

Last month, the U.S. Senate confirmed two of Trump's Texas nominees to the Fifth Circuit including Dallas lawyer James Ho, who will become the first Asian-American to serve on the court, and Don Willett, the former Texas Supreme Court justice who is known as the Tweeter Laureate of Texas for his mastery of social media.