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On Wednesday, Kerrey announced he had reversed his initial decision not to run for his old seat and would enter the Democratic primary, boosting Democrats' prospects for holding the seat in a conservative-leaning state. When Kerrey was contemplating getting in the first time, Republicans in Washington signaled they would make his residence in New York a major issue as they worked to discourage him from running.

Bruning doesn't have the primary to himself Z— state Treasurer Don Stenberg (R) has the support of the Tea Party and Sen. Jim DeMint (R-S.C.), and state Sen. Deb FischerDeb FischerSenate GOP to Obama: Stop issuing new rules Trump’s Cabinet picks raise hopes for infrastructure package GOP senators avoid Trump questions on rigged election MORE is also running.

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