(Reuters) -Ratings agency Fitch affirmed the United States of America's credit rating at "AA+" on Thursday, citing its structural strengths including high per capita income and financial flexibility.

The country, which is heading to the polls on Nov. 5 for electing the president, has been tested by rising debt.

Fitch believes the underlying fiscal position of the country would remain largely unchanged irrespective of the results of the election.

"The government has failed to meaningfully tackle large fiscal deficits, the growing debt burden and looming increases in spending associated with an aging population," the ratings agency added in the report.

Fitch maintained the country's outlook at "stable".