MINNEAPOLIS -- The campaigns of businessman Bruce Lunsford (D-Louisville) and U.S. Sen. Mitch McConnell (R-Louisville) have both confirmed for what will be the first proper debate of Kentucky's U.S. Senate race.

Lunsford and McConnell will meet on September 13 for a Lincoln-Douglas debate sponsored by the Northern Kentucky Chamber of Commerce.

The event will be an early-morning affair, starting at 8:30am on a Saturday.

The two candidates earlier appeared together for the first time at a Farm Bureau forum in Louisville last month. Then, Lunsford addressed McConnell directly, claiming the incumbent Sen. had "failed" during his four-terms in Washington - a charge McConnell countered by noting his position as U.S. Sen. Minority Leader.