Fitch affirms Triple-A rating for U.S.

Fitch Ratings Inc. affirmed its Triple-A rating for the U.S., citing the nation's "unparalleled financing flexibility as the issuer of the world's pre-eminent reserve currency and benchmark fixed-income asset, and as home to the world's deepest and most liquid capital markets."

According to Fox Business, the rating firm said "renewed brinkmanship" over the federal debt ceiling is a possibility in 2015.

In March, Fitch affirmed its rating for the U.S. and removed it from Rating Watch Negative.

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