A new NYT/CBS poll finds President Obama with a narrow edge over Mitt Romney among likely voters, 49 percent to 46 percent. The three-point lead is within the poll's margin of error. Among registered voters, Obama has a significant advantage, 51 percent to 43 percent.

On whether Americans are better off than they were four years ago -- a question Republicans have raised repeatedly in recent weeks -- about a quarter of likely voters polled said better and a quarter said worse. Nearly half said their lives were about the same.

Those results echo a recent Washington Post-ABC News poll, which found Obama leading with registered voters but in a tight race for likely voters.