Story highlights Barack Obama introduced Sen. Joe Biden of Delaware on Saturday as a man ``ready to step in and be president,'' and the newly minted running mate quickly turned his campaign debut into a slashing attack on Republicans seeking four more years in the White House.
6566
Obama introduces running mate Biden
86838
Vice President Biden takes the oath of office
6086
Watch president Obama formally nominate Senator Kerry for Secretary of State
13000
Obama announces his re-election bid
41579
Presidential election brings arch rivals a step closer
51926
Obama to campaign with former rival Hillary Clinton
111026
Democrats kick off National convention
160198
Biden nominates Biden
140961
Barack Obama calls for new era of engagement across the world
148402
Biden says Romney represents return to past policies
132115
Obama launches healthcare reform drive
20706
Obama welcomes Boston Bruins to the White House
142595
I'm ready to campaign for Obama:
174746
President-elect Obama arrives in dc
162746
Obama to launch first bus tour of campaign
50142
Obama trailing Republican frontrunners
86208
Obama campaign strikes back