-- Last May, he claimed that tornadoes in Kansas killed a whopping 10,000 people: "In case you missed it, this week, there was a tragedy in Kansas. Ten thousand people died -- an entire town destroyed." The actual death toll: 12.
-- Earlier this month in Oregon, he redrew the map of the United States: "Over the last 15 months, we've traveled to every corner of the United States. I've now been in 57 states? I think one left to go."
-- Last week, in front of a roaring Sioux Falls, S.D., audience, Obama exulted: "Thank you, Sioux City. ... I said it wrong. I've been in Iowa for too long. I'm sorry."
George Bush was misunderestimated. These two Democratic candidates seem to have been consistently misoverestimated. Doesn't mean we can count Obama out in a general, but we can probably count on him messing up with delightful regularity.