Highlights from Senate vote to confirm Ketanji Brown Jackson

The Senate Judiciary Committee reconvened just after 9 a.m. Wednesday on Capitol Hill where Judge Jackson will undergo another marathon day of questioning.

While Democrats have the votes to confirm Biden's high court nominee on their own, Jackson’s final day of questioning could prove critical to the White House goal of securing at least some Republican support and shoring up the court's credibility.

GOP Sens. Susan Collins, Lisa Murkowski and Lindsey Graham, who sits on the Senate Judiciary Committee, voted in favor of Jackson's confirmation to the D.C. Circuit last June, but after private meetings with Jackson this month, all three have been noncommittal about supporting her again.

The spotlight on a historic nominee -- and the court itself during such a consequential term of cases -- has also provided the opportunity for both political parties to appeal to key voting constituencies ahead of the midterm campaign season.

-ABC News' Devin Dwyer

Judge Jackson faces another round of all-day questions on Wednesday from the Senate Judiciary Committee, where she will need a majority of senators to approve her Supreme Court nomination out of committee before it sees a full floor vote.

Because the committee did not finish its first round of questioning on Tuesday, it will pick back up at 9 a.m. with 30-minute rounds from Democratic Sen. Jon Ossoff and Republican Sen. Thom Tillis, R-N.C. Notably, Sen. Marsha Blackburn, R-Tenn., traded spots with Tillis to go Tuesday evening, when she asked the Supreme Court nominee to provide a definition for "woman."

While Democrats have used the hearings to give Jackson a chance to defend her record and display her personal side, Republicans have so far played to long-running culture wars, with Sen. Ted Cruz asking Biden's nominee about critical race theory and Sen. Lindsey Graham probing her faith, he said, to make a point about how Democrats scrutinized Justice Amy Coney Barrett.

For the second round of questioning, each of the committee's 11 Republican and 11 Democratic members will then have up to 20 minutes to question Jackson one on one in order of seniority.

On Thursday, senators can ask questions of the American Bar Association and other outside witnesses.

Judge Jackson took questions for nearly 13 hours Tuesday before the Senate Judiciary Committee -- where Democrats hailed her for breaking barriers and Republicans attempted to brand her as "soft on crime” -- but Jackson refused to play into political fights and vowed repeatedly to “stay in my lane.”

In several tense exchanges with Republicans on the committee, Jackson defended her record as both a lawyer and a judge.

She called her service as a federal public defender -- including defense of accused terrorists held without charge at Guantanamo Bay -- an act of "standing up for the constitutional value of representation." Faced with allegations she was too lenient on child pornography offenders, Jackson stressed that she followed federal sentencing guidelines set by Congress and got emotional when talking about reviewing evidence in what she called “heinous” and "egrigous" crimes.

Jackson also resisted repeated attempts to classify her “judicial philosophy,” claiming she doesn’t have one, but she did lay out a "methodology" she’s developed for approaching each case: proceed from a position of neutrality, evaluate the facts, and apply the law to facts in the case.

Asked also about same-sex marriage, abortion, and the right to own a gun in the home, Jackson said the Supreme Court has established those rights and that she is bound to stare decisis as a jursist.

Read more key takeaways from Tuesday’s session here.

-ABC News’ Devin Dwyer

An unflappable Jackson endured over 12 hours of questioning on Tuesday.

Multiple senators pressed her on her decisions in sentencing defendants in child porn cases.

The judge also addressed crime, abortion, gender, critical race theory and her representation of Guantanamo Bay detainees.

Jackson's confirmation hearing will resume at 9 a.m. Wednesday to wrap up first-round questioning from two remaining senators: Jon Ossoff, D-Ga., and Thom Tillis, R-N.C. The hearing then moves on to the second round of questions.