Super Tuesday in full swing A voter casts a ballot at the Flushing Volunteer Fire Department in Flushing, Ohio, March 6, 2012. Republicans...

Super Tuesday in full swing

A voter casts a ballot at the Flushing Volunteer Fire Department in Flushing, Ohio, March 6, 2012. Republicans are holding their "Super Tuesday" presidential primary in 10 states.(Photo/AP)

A voter casts a ballot at the Flushing Volunteer Fire Department in Flushing, Ohio, March 6, 2012. Republicans are holding their "Super Tuesday" presidential primary in 10 states.(Photo/Reuters)

A voter enters a polling station to cast his ballot in the "Super Tuesday" Republican presidential primary at the Lexington Avenue Fire House in Cambridge, Massachusetts.(Photo/AFP)

Sarah McLillard watches as her son Lain casts a "vote" at a polling station in Richmond, capital of Virginia, the United States, March 6, 2012. Republicans in 10 states across the United States went to polling stations for Super Tuesday, the biggest contest in this year's GOP primary contest. (Xinhua/Zhang Jun)

Voters cast their ballots at a polling station in Arlington, Virginia, the United States, March 6, 2012. Republicans in 10 states across the United States went to polling stations for Super Tuesday, the biggest contest in this year's GOP primary contest. (Xinhua/Wang Yiou)

Early results from exit polls in seven states holding Super Tuesday Republican presidential primaries show that the economy is the top issue across every state. In addition, voters in all seven states are most seeking a candidate with the ability to defeat President Barack Obama in the November election.