In an interview with “60 Minutes” this weekend, Supreme Court Justice Sonia Sotomayor gave one of the best debunkings I’ve seen of the Right's line that a judge should be no more than an umpire, exercising no independent judgment and facing no difficult questions. Using the politically neutral example  of the 3rd Amendment, Sotomayor explains  how even the most seemingly clear-cut parts of the Constitution still require interpretation by judges and Justices:
Chief Justice John Roberts made headlines  when, in his confirmation hearings, he said that a judge’s job was merely to call “balls and strikes.” The comforting words of his analogy hide the fact that most of the issues the Supreme Court approaches are complex and require human judgment – that’s why they reach the Supreme Court in the first place. They also conveniently obscure the fact that the conservative bloc on the Court is plenty influenced by their own ideology – there are plenty of examples here.
Justice Elena Kagan, in her confirmation hearings, gave another great rebuke  to Roberts’ flawed baseball analogy. “We know that not every case is decided 9-0,” she said, “and we know that’s not because anybody’s acting in bad faith. It’s because reasonable people can reasonably disagree sometimes. So in that sense, the law does require a kind of judgment, a kind of wisdom. “