President Joe Biden reaffirmed his campaign pledge to nominate a Black woman to the Supreme Court following the announcement of Justice Stephen Breyer’s retirement late last week. Breyer, 83, will step down when the court’s summer recess begins in late June or early July, according to The Washington Post.

Among the frontrunners to replace Breyer is U.S. Court of Appeals D.C. Circuit Judge Ketanji Brown Jackson. A Washington, D.C., native, Jackson, 51, graduated from Harvard Law School, where she was an editor of the Harvard Law Review. She then went on to clerk for Breyer from 1999-2000.

Jackson is also related by marriage to former House Speaker Paul Ryan (R-WI), which may give her a leg up with Republicans. Her husband is the twin of Ryan’s brother-in-law.

Another contender for Breyer’s seat is California Supreme Court Justice Leondra Kruger, 45. The Yale Law School graduate is considered a moderate on the seven-person bench, according to Vox. She previously clerked for Supreme Court Justice John Paul Stevens.

South Carolina District Judge J. Michelle Childs has been named as well. She is a favorite of Representative Jim Clyburn (D-SC), who has championed Childs as a graduate of the University of South Carolina School of Law rather than an Ivy League school.

“Judge Childs has everything I think it takes to be a great justice,” Clyburn said. “We’ve got to recognize that people come from all walks of life, and we ought not dismiss anyone because of that.”

Biden is also considering Judge Candace Rae Jackson-Akiwumi of the Seventh Circuit Court, Second Circuit Judge and former New York public defender Eunice Lee, and recent Ninth Circuit Court appointee Holly Thomas. The President intends to announce his decision by the end of February.