Win or lose, Sen. John F. Kerry [related, bio] has pulled off something people have tried to do for more than a decade: reuniting the surviving members of Nirvana. Dave Grohl and Krist Novoselic, who made rock history in Seattle with the late Kurt Cobain, will appear today at a Kerry rally at the Stardust Casino in Las Vegas. Grohl will perform with his band, Foo Fighters. Novoselic, an activist who authored ``Of Grunge and Government,'' will speak. Also expected are Kerry's daughter, Alexandra, stepson, Chris Heinz, and Tom DeLonge of punk band Blink 182.