US budget not solution to government's debt-Moody's

NEW YORK Feb 2 (Reuters) - The U.S. government's budget presented on Monday was a small start to returning to sustainable debt levels, but further steps are needed to preserve the country's Aaa rating, Moody's Investors Service said on Tuesday.

"The debt trajectory is clearly continuously upward if further measures are not implemented," Moody's senior credit officer Steven Hess said in a statement.

As interest rates rise and the size of the debt increases, "debt affordability will deteriorate in a major way," he said.

(Reporting by Dena Aubin)