Mitch McConnell, the Senate majority leader, with fellow Republicans on Capitol Hill this month.
Credit Zach Gibson

Zombies have long ruled the Republican Party. The good news is that they may finally be losing their grip — although they may still return and resume eating conservative brains. The bad news is that even if zombies are in retreat, vampires are taking their place.

What are these zombies of which I speak? Among wonks, the term refers to policy ideas that should have been abandoned long ago in the face of evidence and experience, but just keep shambling along.

The right’s zombie-in-chief is the insistence that low taxes on the rich are the key to prosperity. This doctrine should have died when Bill Clinton’s tax hike failed to cause the predicted recession and was followed instead by an economic boom. It should have died again when George W. Bush’s tax cuts were followed by lackluster growth, then a crash. And it should have […]