Obama Builds on Leads in Ohio and Florida

Has at least a 10 point lead in both states

U.S. President Barack Obama has expanded his lead over Republican challenger Mitt Romney in the southern state of Florida and the midwestern state of Ohio—two of the most important battleground states in this year's presidential race.

A public opinion poll released Wednesday shows President Obama with more than 50 percent support in both states, part of the group of so-called swing states expected to decide the November 6 election.