The New Republic has a look at Mitt Romney's internal polls, and they're hilariously bad.
The first thing you notice is that New Hampshire and Colorado are pretty far off the mark. In New Hampshire, the final internal polling average has Romney up 3.5 points, whereas he lost by 5.6. In Colorado, the final internal polling average has Romney up 2.5 points; he lost by 5.4. “I’m not sure what the answer is,” Newhouse told me, explaining that his polls were a lot more accurate in most of the other swing states. “The only ones we had that really seemed to be off were Colorado—a state that even Obama’s people tweeted they thought it was going to be one of their closest states—and the New Hampshire numbers, which seemed to bounce a lot during the campaign.”
Huh. I wonder where they went wrong?
Broadly speaking, the people who showed up to vote on November 6 were younger and less white than Team Romney anticipated, and far more Democratic as a result. “The Colorado Latino vote was extraordinarily challenging,” Newhouse told me. “As it was in Florida.”
Oh, yeah. That. Well! Who could've predicted?