Drive around Northern Virginia, and you’ll see no sign that only three months ago, the state was the epicenter of one of the most embarrassing and horrifying political scandals in recent memory. In the populous suburbs west of Washington, plenty of cars still sport bumper stickers proclaiming support for Gov. Ralph Northam, Lt. Gov. Justin Fairfax and Attorney General Mark Herring—Democrats all.

It’s hard to believe that a scandal involving abortion, multiple instances of politicians wearing blackface, and sexual assault...