Moody's warned on Monday that it could move a step closer to cutting the U.S. Aaa rating if President Barack Obama's tax and unemployment benefit package becomes law.The plan agreed to by President Barack Obama and Republican leaders last week could push up debt levels, increasing the likelihood of a negative outlook on the United States rating in the coming two years, the ratings agency said.
A negative outlook, if adopted, would make a rating cut more likely over the following 12-to-18 months.
For the United States, a loss of the top Aaa rating, reduce the appeal of U.S. Treasuries, which currently rank as among the world's safest investments.