President Obama answers questions from White House interns about how he remains optimistic, his legacy with the African American community, and on when to compromise. He then says being president is the result of lucky breaks, which you can't always control. But being useful is something that you can control.

00:08 How do you remain optimistic?
02:13 What kind of legacy would you like to leave in the African American community?
06:29 How do you know when to compromise?