The event is scheduled to begin at 9:30 a.m. ET.
President Donald Trump nominated Wray, 50, to replace James Comey. Patrick Leahy. Comey testified before the Senate Judiciary Committee last month that, during one interaction with the president, Trump demanded his loyalty, and he demurred, saying he would instead offer his "honesty". And he attempted to do just that.
"It's vitally important for the FBI Director to be independent", Republican committee Chairman Chuck Grassley of Iowa said of the former federal prosecutor in opening remarks.
"It would depend on the circumstances", he said. Ben Sasse (R-Neb.).
"Period", Wray told the Senate Judiciary Committee hearing on Wednesday.
Wray said he would stand ready to resign at a moment's notice if he deemed it necessary and that "there isn't a person on this planet whose lobbying or influence" could convince him to drop a proper investigation.
Additionally, Wray listed three "confidential clients" whose "names can not be disclosed because they are subject to non-public investigations".
"The FBI is one of the most powerful tools available to the president, and from what we've seen from the White House, they may be expecting your loyalty as the president did with Director Comey", said Sen.
Said Wray: "I have no reason to doubt the conclusions of the intelligence community".
He also said he has never discussed Comey's firing with the White House. I know, from up close - and I sleep better because I know - that the horror of 9/11 has never faded from the FBI's collective memory.
Will you be loyal to the justice system or to the president?
Unlike the president, Wray supports Special Counsel Robert Mueller's investigation into possible coordination between Russian Federation and the Trump campaign.
Former FBI Director Robert Mueller, a special counsel appointed by the Department of Justice, is now overseeing the federal Russian Federation probe. The New York Times revealed that the president's eldest son, Donald Trump Jr., received an email last summer from an intermediary promising damaging information about Hillary Clinton and furnished by the Russian government.
"My view is that torture is wrong", Wray said.
"I do not consider Director Mueller to be on a witch hunt", Wray said. But Wray said he would reject any efforts to interfere with Mueller's work. Prior to Wray's nomination, Trump considered a number of candidates for the director position, among them McCabe, Sen.
Under Comey's direction, the FBI opened an investigation into Russian attempts to influence the election in July 2016.
A quick refresher: Wray has been picked by the president to succeed James Comey, who was sacked after more than three years on the job this past May.
The issue takes on even more significance this week in the wake of revelations that Trump's son, son-in-law and then-campaign manager a year ago met with a Russian lawyer whom Donald Trump Jr. believed might offer damaging information on Trump's chief Democratic opponent, Hillary Clinton. "When he heard they had concerns, that suggested to him there was a real issue here", he recalled.
Wray deflected specific questions but said: "Any threats or effort to interfere with our election from any nation-state or any non-state actor is the kind of thing the Federal Bureau of Investigation would want to know".
Democrats will have plenty of questions. Al Franken (Minn.), said what seemed as though even the most skeptical Democrats were thinking: Wray passed the test.