Elena Kagan is speeding toward confirmation as the 112th Supreme Court justice, with Republicans showing little appetite for a long-shot filibuster attempt after sparring with her over abortion, gays in the military and other divisive issues.

"Solicitor General Kagan will be confirmed," Sen. Patrick Leahy, D-Vt., confidently predicted as the Senate Judiciary Committee wrapped up its examination of President Barack Obama's high court pick.

Barring an unexpected turn, Kagan will succeed retiring Justice John Paul Stevens and become the fourth female justice in the Supreme Court's history. It would be the first time that three of the court's nine justices were women.

Sen. Jon Kyl of Arizona, the Senate's No. 2 Republican, called a filibuster of Kagan "highly unlikely." And asked outright whether Kagan was going to win confirmation, another Judiciary Committee Republican, Sen. John Cornyn of Texas, replied, "I assume she will be."

Kagan, 50, spent her last day before the committee Wednesday trying to reassure conservatives that she would be able to separate her personal and political views from a job as a justice on the ideologically split Supreme Court.