Mr Obama paid tribute to Hillary Clinton, his rival, who coasted to an oveerwhelming victory, in the Kentucky primary.
“The road here has been long and that is partly because we’ve travelled it with one of the most formidable candidates to ever run for the office” said Barack Obama, speaking of the senator from New York and congratulating her on her Kentucky victory on Tuesday.
Clinton had won 65 percent support, compared to 30 percent ofr Obama, with votes counted from 97 percent of the Kentucky precincts.
Barack Obama won the other primary held on Tuesday, in Oregon.
He sought unity with the Democratic party, as with Clinton’s supporters.
“No matter how this primary ends, Senator Clinton has shattered myths and broken barriers and changed the America in which my daughters and your daughters will come of age, and for that we are grateful to her” said the senator from Illinois.
“Some may see the millions and millions of votes cast for each of us as evidence our parity is divided, but I see it as proof that we have never been more energised and united in our desire to take this country in a new direction.”
The tenor of Obama’s speech left little doubt : he has put the lenghty and hard fought contest against Clinton behind him, and is looking ahead, to the battle against John McCain, the Republican candidate.
But many in Obama’s campaign are already looking ahead, to the presidential election in November.
“They will play on our fears and our doubts and our divisions to distract us from what matters to you,” said Mr Obama on Tuesday.
“The question of whether this country, at this moment, will keep doing what we’ve been doing for four more years or whether we will take that different path.”