OPINION

Here is one thing we are reminded of over and over about President Trump: The man simply cannot help himself — especially when cornered. Given one more chance to forcefully condemn the neo-Nazis and white supremacists whose rally in Charlottesville, Va., ended in violence and a counterprotester’s death, Mr. Trump angrily insisted, as he had suggested on Saturday, that both sides were equally to blame — a false equivalency that not just his critics but also an increasing number of his supporters have urged him to abandon.