Remember the Trump years? Back then we were told the administration, like its head, President Donald J. Trump, was deeply unserious: impulsive, ignorant, possibly corrupt and always vulgar. All in all, a disgrace to the hallowed history of American government. One argument for electing candidate Joseph Robinette Biden was that a Biden administration would restore normalcy to Washington. Instead of crazed, self-obsessed MAGA performers, a Biden team would be made up of sober, sensible establishment types. Boring, perhaps, but not crazy. The problem with that argument, it turns out, is that our establishment nowadays isn’t sober or sensible or boring....