The political scene is evolving so quickly that I presume to offer some advice to President Trump: He can now win in 2024 by being the potential candidate of calm and moderation. The Democrats have become a Babel of contending extremists, suddenly and implausibly blaming the Republicans for defunding police forces and miraculously discovering the virtues of voter identification, after having denounced it for six months as the resurrection of Jim Crow. The utter moral bankruptcy of many elected Democrats was captured in the Texas state legislators fleeing the state in private planes, excitedly taking selfies of themselves unmasked and...