Obama said, "We're spending $10 billion dollars a month in Iraq, at a time when the Iraqis have a $79 billion dollar surplus — $79 billion dollars."

Factcheck.org says it isn't so:

Biden said that Iraq had an "$80 billion surplus." The country was once projected to have as much as a $79 billion surplus, but no more. The Iraqis have $29 billion in the bank, and could have $47 billion to $59 billion by the end of the year, as we noted when Obama used the incorrect figure. A $21 billion supplemental spending bill, passed by the Iraqi legislature in August, knocked down the old projection.