LONDON, March 31 (Reuters) - The U.S. dollar will remain the world's reserve currency and the strength of the United States' economy is unmatched, the White House said on Tuesday, when pressed about comments from Russia and China about a new world reserve currency.
"We've been quite clear that the reserve currency of the world is now and will continue to be the U.S. dollar," spokesman Robert Gibbs told reporters aboard Air Force One, which was carrying President Barack Obama to Britain for this week's G20 summit.
"The strength and breadth of our economy is unmatched."
(Reporting by Caren Bohan)