Nebraska GOP Challenges Kerrey Residency OMAHA, Neb. - The Nebraska Republican Party is going to court to challenge Democratic U.S. Senate candidate Bob Kerrey's voter registration and try to keep him off the Democratic primary ballot. State GOP Chairman Mark Fahleson gave The Associated Press an early copy of the party's plan to file a court challenge Tuesday. The party previously filed a complaint with Nebraska Secretary of State John Gale questioning Kerrey's voter registration. Kerrey first listed his sister's Omaha home as his address on Feb. 28. He changed it the next day to that of an Omaha friend and a campaign donor, where he's staying in a guest home. But Gale says the U.S. Constitution requires only that senators be a resident of the state they serve by the time they're elected.