John McCain is withholding endorsement of another economic stimulus package for the sagging U.S. economy, giving Barack Obama a fresh opening to attack him on the top issue in the presidential campaign.
With two weeks until Election Day, the idea -- advanced by Obama and other congressional Democrats -- that lawmakers should enact legislation to boost the economy gained traction when it won support from Federal Reserve Chairman Ben S. Bernanke and the Bush administration said it is ``open'' to proposals.