Watched by his son Henry, Democratic Senate candidate Bob Kerrey delivers his concession speech at the Nebraska Democratic Party's election night gathering, in La Vista, Neb., Tuesday, Nov. 6, 2012. Kerrey lost his election bid to Republican Deb Fischer. Rear left is retiring Sen. Ben Nelson, D-Neb. (AP Photo/Nati Harnik)

Photo by: Nati Harnik

Watched by his son Henry, Democratic Senate candidate Bob Kerrey delivers his concession speech at the Nebraska Democratic Party's election night gathering, in La Vista, Neb., Tuesday, Nov. 6, 2012. Kerrey lost his election bid to Republican Deb Fischer. Rear left is retiring Sen. Ben Nelson, D-Neb. (AP Photo/Nati Harnik)