Hatch, who has never voted against a Supreme Court nominee, said he was considering opposing Sotomayor. "I'm troubled," said Hatch, a former Judiciary chairman.

Updated at 3:00 p.m. on July 16.

Senate Judiciary Chairman Patrick Leahy, D-Vt., has scheduled a committee vote on Sonia Sotomayor's confirmation for Tuesday, he said during a recess of today's hearings.

According to committee rules, Republicans can move to delay the vote a week, which means the latest a committee vote could occur is July 28. Ranking member Jeff Sessions, R-Ala., was noncommittal on the date, but didn't explicitly say what Republicans were planning to do. He did make clear earlier today, though, that he wants a full Senate vote before Congress leaves for recess Aug. 7.