博·拜登
State Attorney General Beau Biden of Wilmington was reportedly considered for the appointment to his father's Senate seat, but the Vice President's son was in the process of deploying to the Iraq War with the Delaware National Guard and said he would not accept any appointment. In October 2009, after his deployment concluded, Biden stated that he was considering a run for the Senate seat. Most polls showed Biden and likely Republican opponent Castle neck-and-neck in a potential matchup. On January 25, 2010, Beau Biden confirmed that he would not run for the Senate seat.