Attorney General nominee Loretta Lynch moved one step closer to becoming Eric Holder's successor after she wrapped up her confirmation hearing on Wednesday.

During the first day of her hearing, Lynch, a U.S. attorney in Brooklyn, New York, promised to work with the Republican-controlled Congress if she does become the next U.S. Attorney General. She also made it clear that she does not support the legalization of marijuana while undergoing a series of scrutinizing questions by Republican senators.

"If confirmed as attorney general, I would be myself. I would be Loretta Lynch," she said, when asked how senators could be assured that her leadership style would differentiate from Holder, reports the Associated Press.

After the hearing, Republican Sen. Orrin Hatch signaled his support behind the top federal prosecutor in parts of New York City and Long Island for the federal position, which would make her the first black woman to lead the Department of Justice.

"I believe she's not only qualified but exceptionally well-qualified and a very good person, to boot," said the Utah senator said, becoming the first Republican on the committee to publicly endorse Lynch, according to Slate.

Republican Sen. Lindsey Graham also indicated that he will vote for Lynch, saying, "You've acquitted yourself very well," after challenging her on national security.

Lynch, who needs the support of at least three GOP members on the panel, will likely also get a vote from Sen. Jeff Flake of Arizona. Her nomination would then be taken up for a vote by the full Senate.

On Thursday, a number of outside witnesses were expected to speak at the Senate Judiciary Committee, including several who are backed by Republicans and have voiced opposition to President Obama and his use of executive power.

In addition, witnesses are also set to speak on Lynch's behalf, including Janice Fedarcyk, the former head of the FBI's New York field office, and David Barlow, a former U.S. attorney from Utah.

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