President Donald Trump announced on Twitter this morning that he will nominate former assistant attorney general Christopher Wray for FBI director.

The announcement comes one day before former FBI director James Comey testifies in front of a Senate committee.

The Senate will have to confirm Wray for the position.

Assistant Attorney General

Wray served as assistant attorney general at the Department of Justice during former President George W. Bush’s first term. He took charge of the criminal division in 2003 and worked there until 2005.

From Fox News:

During his time at DOJ, Wray became known for overseeing the Enron prosecution task force and playing a major role in the department’s post-9/11 response.

Wray received the Edmund J. Randolph Award, the DOJ’s highest award for public service and leadership, when he left the Justice Department in 2005.

He first joined the DOJ in 1997, though, when he worked “as a prosecutor for the U.S. Attorney’s Office for the Northern District of Georgia.”

Private Practice

Wray entered the private sector when he left the DOJ in 2005. He currently works at the King & Spalding law firm in Washington, D.C. as a litigation partner and “chairs the firm’s Special Matters and Government Investigations Practice Group.”

New Jersey Governor Chris Christie hired Wray to represent him during the “Bridgegate” investigation. He first met Wray when they both worked under Bush’s administration where they worked together “on a fraud investigation into the the drug maker Bristol-Myers Squibb.” From NorthJersey.com:

“I have the utmost confidence in Chris. He’s an outstanding lawyer. He has absolute integrity and honesty, and I think that the president certainly would not be making a mistake if he asked Chris Wray to be FBI director,” Christie said Thursday.

Christie, who is friends with Trump, declined to say whether he had any involvement in the president’s decision to consider Wray for the role.