ARG: McCain 49%, Obama 45% in W.Va.

American Research Group surveyed 600 likely voters on Sept. 14-16. The results have a 4 percentage point margin of error.

Among the key findings: 31% of Democrats said they would vote for McCain, while only 9% of Republicans would cross over to support Obama. But Obama had 53% of independents, to McCain's 39%.

Overall undecideds totaled 7%.