A GOP Civil War? Don’t Bet On It.

If you’ve been reading the coverage lately, or listened to gloating Democrats, it’s easy to believe the Republican Party is eating itself alive.

The former Republican president literally campaigns against incumbents of his own party. NBC calls it a “GOP power struggle”; The Hill describes “deep rifts”; and the Democratic National Committee exults over “a GOP civil war.” After losing the White House, the House and the Senate, its congressional leadership is now in open conflict; Wednesday, the minority leader is expected to oust his No. 3.

Among Democrats painfully...