Rush Limbaugh’s millions of fans deserved better than his disgraceful performance last week, when for three days running he insulted liberal activist Sandra Fluke in coarse and ugly terms. Take it from a conservative who agrees with much of what Limbaugh says: The radio host’s verbal assault on Fluke was no off-the-cuff blooper. It was boorish and deliberate. And the way to apologize is not by harping on left-wing misogyny.