The Christian activist and constitutional lawyer says Republicans should not ask Roberts how he would decide a case, but rather probe into his legal philosophy. That is, ask Roberts if he believes in enforcing the Constitution the way it was written -- or the way he wishes it had been written.
That's pretty standard RightThink. But here's Agape's summary of the Catholic question:
...The dispute over whether Catholics in public life can or should uphold church teachings is flaring up again in the Supreme Court nomination of Judge John Roberts. Roberts is expected to face some of his toughest grilling in the Senate Judiciary Committee from fellow Catholics -- Democrats Edward Kennedy, Richard Durbin, Patrick Leahy and Joseph Biden -- who oppose limits on abortion. Members of the American Life League demonstrated on Capitol Hill yesterday, urging the four senators not to reject Roberts out of fear that he will be a more faithful Catholic than they are...
So you should interpret the Constitution as written, except and until it collides with religious beliefs.