My wife is not a big fan of President Trump. So when I got back from covering the Trump rally in Wildwood Tuesday, she asked me a question: “Were there any empty seats?” Were there any empty seats at Woodstock? I’ve never covered a Trump event that didn’t evoke images of that 1969 rock festival. As with Woodstock, the organizers have no need to advertise the event widely. The mere mention of it is enough to attract massive throngs of the faithful. Another similarity is the opportunity to hear a lot of great rock music from the 1960s. I arrived...