Looks like Hillary’s not the only one who is sleep-deprived. And you know, it’s hard to remember where you are when you’ve been traveling across 57 states non-stop:

D’oh.

The bigger gaffe, of course, was the campaign’s decision to have Obama stand with landslide loser George McGovern:

Illinois Sen. Barack Obama started his speech tonight with a gaff[e].

“Thank you Sioux City,” he said, before realizing his mistake.

“I said it wrong. I’ve been in Iowa for too long. I’m sorry,” he said.

Obama appeared before a roaring audience after being introduced by former Sens. Tom Daschle and George McGovern.

Daschle and McGovern were among many of the state’s most prominent Democrats.

You’ve seen one bitter, clingy flyover town, you’ve seen ‘em all.

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Update: Here’s the vid…