Obama attacks Romney over tax plan

US president Barack Obama is set to argue in the battleground state of Ohio that the tax proposals of his Republican challenger Mitt Romney would be good for China and other countries, but bad for the United States.

Mr Obama has campaigned repeatedly in Ohio, a critical industrial state in the Midwest and one that does not reliably vote Republican or Democratic. The few so-called swing states like Ohio are expected to decide the presidential contest in November’s vote.