Near-zero interest rates are expected to remain in place for another year
Agency says decision based on analysis of five 'pillars' in sovereign rating framework used to evaluate 126 other countries
Managing director says another downgrade cannot be ruled out if America’s worsening fiscal imbalances do not improve
Senators approve compromise measure worked out by Republican leaders, President Barack Obama
Votes expected in both houses ahead of Tuesday’s deadline to raise the debt ceiling or risk a possible default on US obligations
Senate's top Republican says he and the White House are 'very close' to an agreement that could attract bipartisan support
Daunting hurdles remain for two legislative plans to cut US government spending and raise the federal borrowing limit
Top lawmakers of both major political parties pledging to defeat opponents' last-ditch proposals to cut federal spending, debt ceiling
House speaker John Boehner called on his fellow Republicans to support measure that would entail a short-term extension
In less than two weeks, US risks defaulting on national debt unless both houses of Congress can compromise
Whether to raise taxes has been major impediment in US debt negotiations
Republican-sponsored House measure expected to fail in Democratically-controlled Senate
But a bipartisan deal to put the nation on a sustainable fiscal path shows no sign of materializing
With a possible default on US debt obligations looming - amid dire warnings - Washington remains mired in political standoff
Republican and Democratic plans would shave trillions in future US debt, but do so in very different ways
Lawmakers cannot agree whether a long-term deficit reduction deal should include additional revenue, or rely on federal spending cuts
US lawmakers are staking out partisan positions ahead of Thursday's meeting at White House
Move comes amid Republican insistence chamber focus on nation’s impending debt crisis
Lawmakers disagree on how deeply cut spending to bridge the budget gap
Four-star general to succeed Leon Panetta, who was confirmed as US defense secretary
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