After more than seven hours and two technical glitches, the second round of questioning for Barrett’s confirmation hearings has concluded. 

Chairman Graham said he "lost sleep" over the hearing, but he ultimately thanked Democrats for conducting themselves in a way, Graham says, that is "befitting of the Senate" before offering some words of encouragement to Trump's nominee.

"You’re one of the most amazing human beings I’ve met in my life, and that’s saying a lot because I’ve met a lot of incredible people," Graham told Barrett. "With Amy Barrett, the best is yet to come."

Referring to Justice Ginsburg, Graham told Barrett, "She has a different philosophy than you do judicially. That is OK."

"I hope it’s OK that you can be pro-life and adhere to you faith and still be considered by your citizens worthy on the job."

Perhaps knowing that Republicans have the votes to confirm Barrett, Democrats did not ask for a third round of questioning. Instead, committee members will move forward with the next step in the nomination process, a closed-door session to review Barrett's FBI background check immediately following the hearing.

"You can have two glasses of wine tonight if you’d like," Graham joked, repeating, the hearing part is over."

Vice-presidential nominee Sen. Kamala Harris, D-Calif., asked Barrett whether she agrees with the majority opinion written by Chief Justice Roberts in Shelby County v. Holder stating that voter discrimination still exists -- but Barrett wouldn’t answer what Harris said she thought was an easy question.

"Senator Harris, I will not comment on what any justice said, an opinion, whether an opinion is right or wrong, and endorse that proposition," Barrett said.

"So, do you call it a proposition or fact? Are you saying you cannot agree with the fact?" Harris pressed.

"Senator, I'm not exactly sure what you're getting at with asking me to endorse the fact or whether any particular practice constitutes voter discrimination. I'm very happy to say that I think racial discrimination still exists in the United States, and I think we've seen evidence of that this summer," Barrett said.

"These are very charged issues that have been litigated in the courts, and so I will not engage on that question," she added, when Harris continued on voter and racial discrimination.

Dissatisfied with her response, Harris pivoted to science and climate change and, after a series of simple questions including whether she believes in COVID-19, asked Barrett if she believes climate change is real. 

"You have asked me a series of questions like that are completely uncontroversial like whether COVID-19 is infectious, whether smoking causes cancer, and then trying to analogize that to eliciting an opinion from me that is a very contentious matter of public debate, and I will not do that," Barrett said.

She didn't offer the information, but Barrett has previously disclosed she was diagnosed with COVID-19 over the summer.

Sen. Cory Booker, D-N.J., said he was disappointed when Barrett told him she had not read any studies or articles, books, law review articles or commentary regarding racial disparities present in our criminal justice system. 

Barrett eventually said her knowledge of these issues roiling the country comes from conversations at Notre Dame. 

"I would say what I have learned about it has mostly been in conversations with people at Notre Dame. As at many different universities it’s a topic of conversation in classrooms, but it's not something that I can say yes I've done research on this and read," she said.

Following questioning from Booker, Sen. Mike Crapo, R-Idaho gave Barrett a chance to defend herself from the "implication" that she would "not be sensitive to the need for equal justice for all." 

Barrett reaffirmed that she "abhors" racial discrimination and said she would want all of her children, "especially Vivian and John Peter" -- her two adopted children -- to know that she "unequivocally condemns racism."

-ABC News’ Trish Turner and Allie Pecorin

The late Justice Ruth Bader Ginsburg and her legacy is a major presence at the confirmation hearing.

Both Republicans and Democrats have invoked the late justice in their questioning -- but her presence was shown in more visual ways, too.

For the third day in a row, Sen. Mazie Hirono, D-Hawaii, sported a mask with images of the late icon.

Sen. Chris Coons, D-Del., had placed a photo of Ginsburg in front of him for his questioning.

Not far outside the committee room on Capitol Hill, people for and against Barrett’s nomination protested outside the Supreme Court building, with many holding signs nodding to her signature collar.

Sen. Dianne Feinstein, D-Calif., the committee's top Democrat, followed up on the doctrine of severability, central to the Affordable Care Act case being argued before the Supreme Court on Nov. 10, asking Barrett for her definition of it.

"The doctrine of severability as it's been described by the court, you know, serves a valuable function of trying not to undo your work when you wouldn't want a court to undo your work," Barrett said. "Severability strives to look at a statute as a whole and say: Would Congress have considered this provision so vital that -- kind of in the Jenga game, pulling it out -- Congress wouldn't want the statute anymore?"

"Insofar as it tries to effectuate what Congress would have wanted, it's the Congress and court working hand in hand," she said.

Feinstein said she was "impressed" at the response -- but when they moved along to voting rights, the senator was not satisfied with Barrett.

Feinstein raised Justice Scalia’s questioning during oral arguments in the 2013 case Shelby County V. Holder in which he questioned strong congressional support for re-enactment of the Voting Rights Act.

"Do you agree with Justice Scalia's assertion that the Voting Rights Act is a, quote, 'perpetuation of racial entitlement' end quote?" Feinstein asked.

Barrett said she can’t opine on the issue.

"Senator Feinstein, I can't -- I don't obviously know what Justice Scalia was thinking when he said that. And any characterization of the Voting Rights Act or a statement like that is simply really not something I can opine on. Because, you know, that's tied in, I would think, with the Shelby County questions,” Barrett said. 

"I'm not asking for a formal opinion. But would you believe that it's a perpetuation of racial entitlement?" Feinstein pressed. 

"Senator Feinstein, I think that goes to the question of whether the coverage formula was outdated and needed to be updated from the 1960s or not. I take that to be the thrust of the disagreement in Shelby County and the position that Justice Scalia was taking. So again, I can't express a view on Shelby County and whether the majority or dissent had the better of the argument," Barrett said.