On the final day of frenetic campaigning through the battleground states that will determine the outcome of the US presidential race, the push comes as national polls show the race is tied. In a final 24 hours, Obama and Romney -- or their campaign surrogates, including their wives and the vice presidential candidates -- are scheduled to make stops in Ohio, Iowa, Florida, Virginia, Colorado, Wisconsin, Nevada, North Carolina, Pennsylvania and New Hampshire. A new CNN poll showed 49% support for Obama and 49% for Romney.