LINCOLN, Neb. (AP) — Nebraska U.S. Senate hopefuls Deb Fischer and Bob Kerrey have agreed to a campaign debate at the State Fair in Grand Island.

Local media reports that the candidates will square off on Aug. 25.

Both are seeking to fill the seat that will open after the retirement of Democratic U.S. Sen. Ben Nelson. Nelson announced in December that he will not seek re-election, and national Democratic and Republican leaders have identified his seat as a key target in the November election.

Kerrey, a Democrat, is looking to return to the U.S. Senate after leaving office in 2001. The former Nebraska governor most recently served as president of The New School, a university in New York City.

Fischer, a Republican, is a Nebraska state senator from rural Valentine.