...because her description of the US dollar doesn't add up

White House spokeswoman Sarah Sanders today:

"Currently we have a very stable dollar because of how well the U.S. is doing and is as powerful as it's ever been," she said Wednesday at a briefing in Washington, responding to a question from a reporter. "We believe in free-floating currency. The president's always believed in that."

Here is the US dollar index, which is at a three-year low today: