. >> four years ago, mike kass el, a long time player in politics was on a glide path with the ultimate career capper, a spot in the u.s. senate. joe biden left his senate seat to become vice president and the seat was being temporarily filled by biden's old right-hand man, ted kauffman. he was a place holder t. idea was biden's son bo would run for the special election in 2010. then bo biden decided not to run. >> that made mike cassel the obvious choice to win that seat. he was a moderate. he represented them 16 years after serving as governor before that. maybe the most popular politician in the state of delaware and the rest of the country hasn't yet contended with the rise of the tee party move him with the right sudden obama era dedication to purifying itself, casting out