WASHINGTON — U.S. Sen. Sherrod Brown plans to reintroduce a bill today to discourage what he says is currency manipulation by China that hurts exports of American manufactured goods.

The bill, which has bipartisan support and easily passed the Senate in 2011 before dying in the House, would require President Barack Obama to impose tariffs on Chinese exports to the United States if the U.S. Treasury concludes China is manipulating its currency.

The bill’s supporters charge that China’s government intentionally devalues its currency for two purposes: to make American goods more expensive in China and to make Chinese exports less expensive in the U.S. and other foreign countries.