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Nebraska state Senator Deb Fischer won the Republican nomination Tuesday to run for a U.S. Senate seat in November. She will face former Senator Bob Kerrey, a Democrat who represented the state from 1988-2000.

The former governor and two-term senator is vying for the Senate seat left open by retiring Democrat Ben Nelson. But he's been out of Nebraska for more than a decade, and Republicans now outnumber Democrats in the state by a wide margin.

After sending mixed signals in his customary style, former Bob Kerrey ,the former U.S. senator from Nebraska, has decided to run for the Senate again, which some Senate Democrats see as improving their chances to hold onto control of the chamber.

The race for the control of the Senate just got even more interesting. Democrats have 23 seats to defend. Republicans have 10. The GOP just needs a four-seat gain to take control of the chamber.