The crisis that has unfolded since Wednesday's wholly illegitimate storming of the U.S. Capitol has taken a very dark turn, and I am genuinely worried about what will happen next. First, however, it is important to make it clear from the outset that I believe it was a huge mistake for the rally outside the White House to have taken place at all. Half a million people gathered in Washington. All of them were convinced that the election had been "stolen." So it was utterly irresponsible for people like Rudy Giuliani to urge on the crowd by talking about "trial...