Rudy Giuliani always loved opera. He founded his Brooklyn high school’s opera club at a time when other kids were digging rock and roll. The choice was deliberately defiant—counterculturally conservative and inspired by his Italian heritage. But it also reflected a sincere love for the sweep and drama of the music’s mythological struggles. Giuliani has lived an operatic life, full of highs and lows, and its final act has been a tragedy. But the full score is more interesting and instructive