Politicians are like bad boys: never fall in love with them, they’ll always hurt you in the end. But try as I might, and I have tried mightily, I can’t fight it anymore. I’ve fallen head over heels for the junior senator from Pennsylvania.

Friday night tipped it for me. John Fetterman was at home in Braddock, a rundown Pittsburgh suburb where he lives with his wife and three children, when an anti-Israel mob gathered outside and began chanting: ‘Fetterman, Fetterman, you can’t hide; you’re supporting genocide!’ Another Democrat might have requested a police evacuation or issued a cuckish statement of...