CHANGE: Another Historic First for Obama: S&P Downgrades US Credit Rating From AAA. “Heckuva job, Bammy.”

But is there a math error? And if so, does it matter?

UPDATE: A reader emails: “Obama lied, our credit rating died.”

Plus, via Drudge, a reminder that just a few months ago Tim Geithner said there was “no risk” of a downgrade. Heckuva job, Timmy!

ANOTHER UPDATE: A reader writes: “When Black Friday falls you know it’s got to be — Don’t let it fall on me.” Sorry, got to go catch the gray men. . . .