S&P downgrades U.S. credit rating from AAA

Credit rating agency Standard & Poor's on Friday lowered the nation's AAA rating for the first time since granting it in 1917. The move came less than a week after a gridlocked Congress finally agreed to spending cuts that would reduce the debt by more than $2 trillion -- a tumultuous process that contributed to convulsions in financial markets. The promised cuts were not enough to satisfy S&P.

The drop in the rating by one notch to AA—plus was telegraphed as a possibility back in April. The three main credit agencies, which also include Moody's Investor Service and Fitch, had warned during the budget fight that if Congress did not cut spending far enough, the country faced a downgrade. Moody's said it was keeping its AAA rating on the nation's debt, but that it might still lower it.