The Mooresie

From Stop Me Before I Vote Again:

The electoral ratchet permits movement only in the rightward direction. The Republican role is fairly clear; the Republicans apply the torque that rotates the thing rightward.

The Democrats’ role is a little less obvious. The Democrats are the pawl. They don’t resist the rightward movement — they let it happen — but whenever the rightward force slackens momentarily, for whatever reason, the Democrats click into place and keep the machine from rotating back to the left.