JAMES PETHOKOUKIS: The Next Big Political Issue? The U.S. Dollar. “The greenback’s continuing slide makes it a handy metric that neatly encapsulates America’s current economic troubles and possible long-term decline. . . . And that’s the political problem for the Obama administration. Its benign neglect of the dollar is another example of an economic policy — along with TARP and the $787 billion stimulus — that the White House thinks is helping the economy, but many Americans find wrongheaded.”