Biden Survives, So Biden Wins

All night long, almost every candidate on stage aimed their attacks at Joe Biden. Early on, Kamala Harris referred to him as “Senator Biden,” a perhaps not-so-accidental demotion. Julian Castro, Bill de Blasio, and Cory Booker all went after him in rapid succession. Even Kirsten Gillibrand claimed that Biden opposed women working outside the home, a particularly implausible accusation.

Here’s the good news for Biden: If tonight doesn’t do any damage to his numbers, he will probably cruise to the nomination. This is life as the frontrunner – you get...