It turns out that John McCain’s most important service to American democracy was not rendered in a P.O.W. camp in Vietnam. It’s being rendered right now in the U.S. Senate.

In the first place, McCain seems to be the only member of Congress who insists on holding hearings and working toward compromise before passing major legislation. This would seem to be the very elemental prerequisite of good government — like a doctor seeking a diagnosis before performing surgery — but McCain appears to be the only member, or at least the only Republican, willing to risk unpopularity to insist upon a basic respect for our sacred institutions.

Second, McCain is one of very few Republicans willing to stand up for the American story. Human beings can be rallied around one of three things: religion, tribe or ideals.

Donald Trump and the campus multiculturalists want to organize people by ethnic tribe, which has always been the menacing temptation throughout our history. But McCain seeks to preserve our traditional rallying point — our ideals. My colleague Bret Stephens has already quoted from McCain’s speech on Monday at the National Constitution Center. I’d encourage you to read the whole thing because this should be the rallying cry around which the nation rediscovers its soul.