Republicans and some Democrats on the Senate Judiciary Committee have been trying to pin down Supreme Court nominee Sonia Sotomayor on where she stands regarding gun ownership rights, but her views remain mostly a mystery after two days of questioning.

Sotomayor cited the fact that Second Amendment cases are likely to soon come before the Supreme Court and declined to answer many specific questions about whether she supported gun ownership as a fundamental right. But her past rulings have left gun rights advocates nervous.