I don't see where they've learned anything.
They SHOULD have learned that since there are more conservatives than liberals in America, they need to be a "big tent" party. That means tolerating centrists, giving them real roles in the party, and recognizing that, at times, a moderate compromise is better than no advancement at all.
While I agree they likely haven't learned anything, you say there are more conservatives despite a-Clinton winning the PV nationally and b-this despite many Sanders supporters not turning out which makes no sense.
