Krugman: "So what’s the source of this obliviousness? The answer, I’d suggest, is that in recent years — and, in fact, for the past couple of decades — becoming a conservative activist has actually been a low-risk, comfortable career choice. Most Republican officeholders hold safe seats, which they can count on keeping if they are sufficiently orthodox. Moreover, if they should stumble, they can fall back on “wingnut welfare,” the array of positions at right-wing media organizations, think tanks and so on that are always there for loyal spear carriers.
And loyalty is almost the only thing that matters. Does an economist at a right-wing think tank have a remarkable record of embarrassing mistakes? Does a pundit have an almost surreal history of bad calls? No matter, as long as they hew to the orthodox line.
There is, by the way, nothing comparable on the Democratic side. Of course there’s an establishment, but it’s much more diffuse, much less lavishly funded, much less insistent on orthodoxy and forgiving of loyal incompetence."