Karl Rove, who for some reason is being given space on the Wall Street Journal opinion page --
Both Democrats and Republicans are in spirited and, at times, heated contests. The difference is Democrats are running a nasty race that has as its subtext race and gender. The Republican race, on the other hand, is a serious debate about serious ideas. Over the last several months, we have been seeing men who represent different strands within the GOP battle each other.
The logic appears to be that since the Democrat race features a white woman and a black man, there's a "subtext" of race and gender, while since the Republican race is all white guys in suits, those issues by definition can't arise.