Obama picks up superdelegates; undecideds moving his way (AP)

Nominating petitions circulated for Clinton, Obama (AP)
AP - Barack Obama and Hillary Rodham Clinton agreed Monday to enter both their names in a dramatic roll call for the Democratic presidential...

Obama, Clinton appeal for Democratic unity in N.H. (AP)
AP - Barack Obama and Hillary Rodham Clinton sought Friday to turn the page on their bitter, history-making fight for the Democratic presidential...

Obama clinches nomination; Clinton seeks VP spot (AP)
AP - Sen. Barack Obama of Illinois sealed the Democratic presidential nomination Tuesday, a historic step toward his once-improbable goal of becoming...

Obama nears win amid signs Clinton may admit loss (AP)
AP - Barack Obama pushed close to victory in the marathon Democratic presidential race Monday on the eve of a final pair of primaries amid signs that...

Clinton wins Puerto Rico primary (AP)
AP - Hillary Rodham Clinton won a lopsided, but largely symbolic victory Sunday in Puerto Rico's presidential primary, the final act in a weekend of...