A third pro is a good rattling of the two main political parties, neither of which is looking particularly pretty on any number of fronts: fiscal or social. The Republicans in particular have revealed themselves to be opportunists of the lowest level, with the Republican National Committee last month choosing to restore previously severed ties — along with funding and support — for Roy Moore, despite allegations that the Alabama Senate candidate once preyed on teen girls, all because President Trump endorsed him. (Mr. Moore ultimately lost to a Democrat.) And the Democrats can hardly claim the moral high ground when they were so willing, at least initially, to carry a double standard regarding sexual impropriety by their own members. (They should get credit for eventually calling for Democratic offenders to step down, while the GOP instead doubled down, but that’s not much of a win).