"We believe in a free-floating currency. The president has always believed in that," White House spokeswoman Sarah Sanders told reporters at a daily briefing. "We have ... a very stable dollar, in large part due to how well the U.S. economy is doing right now."

In remarks seen by markets as a departure from traditional U.S. currency policy, U.S. Treasury Secretary Steven Mnuchin said at the World Economic Forum in Davos, Switzerland, that a weaker dollar was good for the United States.

(Reporting by Roberta Rampton; Writing by Mohammad Zargham; Editing by Tim Ahmann)