—Nevada, where Republicans and Democrats say the president has gained ground over the past few weeks, despite high unemployment and foreclosures. Obama seems to be benefiting from the state's large Hispanic voting bloc and political machinery of Senate Majority Leader Harry Reid.
Romney all but acknowledged the president had an edge in the states. He scrapped plans to visit the state in the final two days. Instead, he sent Ryan.
Associated Press writers Charles Babington in Florida, Brian Bakst in Virginia, Julie Pace in New Hampshire, Steve Peoples in Iowa and Ken Thomas in Washington contributed to this report.