The New York Times on Friday and Saturday let its readers know that the Republicans were getting what they deserved for pandering to right-wing extremism and xenophobia, while Hillary Clinton had successfully gained the sensible center. Friday’s lead editorial, “The G.O.P.’s Monster in the Mirror,†began with a little implied Trumpian vulgarity, then smeared the two Republican senators in the presidential race as extremist. Paul Krugman doubled down, calling the field racist, while Ted Cruz was heckled and Hillary Clinton hailed on Saturday's front page. Holy Mitt, what a meltdown. Add this one to Donald Trump’s lengthening list of firsts:...