Let's start out by stating that the emerging conventional wisdom surrounding Tuesday's presidential debate is probably correct. The night started out promisingly enough for former President Donald Trump. He handled initial questions about the economy reasonably well; the opening theme, "Are you better off today than you were four years ago," is exactly the theme he wants heading toward November. Trump seemed surprisingly confident and calm. Vice President Kamala Harris seemed nervous and a bit off of her game. For the first five minutes or so, it didn't seem like a repeat of the June debate,...