WATCH LIVE: Senators expected to grill Trump's FBI director nominee Christopher Wray over Russia probe
President Donald Trump's pick for FBI chief, Christopher Wray, served in president George W. Bush's Justice Department. (AFP)

The Senate Judiciary Committee is holding a hearing with President Donald Trump's nominee to head the FBI, Christopher Wray.

Wray, a former Justice Department official who has represented New Jersey Gov. Chris Christie, was nominated by Trump last month to replace former FBI director James Comey. Senators are expected to ask Wray about the firing of Comey, along with the growing Russia investigation, among other things.

The hearing is scheduled to begin at 9:30 a.m. (ET). Watch live video below: