NASHVILLE, TN. (AP) - Republican Bob Corker raised $2.6 million in the second quarter and has a $5.3 million balance on hand for bid to be re-elected to the U.S. Senate.

The former Chattanooga mayor has yet to draw a serious opponent from either party for next year's race.

Corker chief of staff Todd Womack said in a statement that the senator's campaign is "grateful for the overwhelming generosity of citizens across Tennessee."

Corker in 2006 defeated Democrat Harold Ford Jr. by fewer than 3%age points in what was the most expensive race in Tennessee history. Corker spent nearly $18.6 million in the successful bid to succeed fellow Republican Sen. Bill Frist.

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