Barack Obama has promised to ``change the world'' if he is elected US President.
42563
Obama: 'I will change the world'
117312
Obama to recast himself
20363
Sen. barack Obama: ``change has come to America''
122579
Obama announces re-election bid
56300
Barack Obama says he deserves to be re-elected
89755
Obama calls for American renewal
10168
Can Obama be re-elected?
144339
Obama will run as white man
18680
Obama is ``ready to lead us''
100259
Obama: 'America is changing'
43352
Obama plans another war to add to his impressive record
96937
Obama promises reform
91845
President Obama announces the new START treaty
45645
President Obama vows to find votes to pass energy bill
5082
The mess Barack Obama has us in
172817
Obama promises new beginning
81808
Barack Obama 'cannot cut emissions without decisive new actions'