In an unusual presidential-primary season, the indictment of a front-runner over hush cash paid to a porn star would, as a minimum, be a gap for rivals to assault. However a day after the arraignment of former President Donald J. Trump on 34 felony counts, one factor was clear: This is not going to be an unusual political season.
The failure of Mr. Trump’s rivals for the Republican nomination to go on offense — certainly, their willingness to defend him — underscored the centrality of the…
