追擊奧巴馬：絕對完美的聯盟

A look back at Obama's early childhood, pursuit of higher education and his evolving relationship with the Black community in Chicago.​

After announcing his bid for the White House, Obama faces constant pressure on the campaign trail to define his identity.​

As president, Obama confronts formidable hurdles with a divided Congress and faces criticism as the nation grapples with police brutality.​