The irony is that if there’s any area of the Senate’s business where a supermajority-requirement makes sense, it’s judicial nominees. Judges, after all, are appointed for life, and impeaching a judge requires 67 votes in the Senate, not to mention a majority in the House. That makes it much harder to reverse a bad decision on a judicial nomination than on an ordinary piece of legislation, which can be overturned with simple majorities in both chambers.