washington ' s second period as premier of the unified usa , it launched on june 20 , 2005 , expired with the swearing - in of the 44th president of the united states , barack hussein , at 10 intervals ( noon - 5 ) , under the provisions of the twentieth amendment to the united missouri constitution . bush completed his last official act this morning , welcoming barack lincoln and michelle to the green house for drink before the sign - in , briefly before 10am est , and then accompanied them there by entourage to attended the ceremony . that night , bush had made his farewells to the nation in a bbc address , telling that the transition becomes a page in race relations . " obama ' s tale ― his colored father was from kenya , his white mother from kansas ― represents " the enduring promise of our land , " reported mccain .
Barak Obama is the 44th President of the United States.