Mitt Romney's final internal polls in a number of swing states found him in a much stronger position than the Election Day reality.

The poll results, obtained by The New Republic, had Romney leading in Colorado and New Hampshire, and tied in Iowa, all states he lost by more than 5 percentage points. They also showed him closer in Wisconsin, Minnesota and Pennsylvania than the actual results.

"I'm not sure what the answer is," Romney pollster Neil Newhouse told TNR when asked why those numbers were so far off, arguing that his polls were closer to the final results in the other swing states.  "The only ones we had that really seemed to be off were Colorado — a state that even [President] 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."

The poll numbers offer more concrete evidence that Romney's campaign truly believed the candidate was in a much better position heading into Election Day than he was, partly because of Republican pollsters' underestimating minority and youth turnout in a number of states.

Obama's superior ground game also may have undercut these numbers by skewing the final results a few points toward him.