The United States lost its top-notch triple-A credit rating from Standard & Poor's Friday, in a dramatic reversal of fortune for the world's largest economy.
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S&P cut the long-term U.S. credit rating by one notch to AA-plus on concerns about growing budget deficits.
"The downgrade reflects our opinion that the fiscal consolidation plan that Congress and the administration recently agreed to falls short of what, in our view, would be necessary to stabilize the government's medium-term debt dynamics," S&P said in a statement.
"More broadly, the downgrade reflects our view that the effectiveness, stability, and predictability of American policymaking and political institutions have weakened at a time of ongoing fiscal and economic challenges to a degree more than we envisioned when we assigned a negative outlook to the rating on April 18, 2011," the statement said.