the 2008 Presidential election in Delaware, the last time longtime Senator Joseph R. Biden Jr. was on the ballot for Senate in Delaware, he romped in a near 30% landslide to be elected to a 7th Term in the senate
He would not end up serving this term, resining to take the job of Vice President he had been elected too concurently to this election.
In doing so, this set up a 2010 Special election that resulted in the Election of this seat's current occupant, Chris Coons