An exchange on faith and politics in America.

A presidential historian interviews a president focused on history.

A conversation about leadership, Grantland, regret, and the President’s favorite conspiracy theories.

The president’s eulogy for the Reverend Clementa Pinckney.

Pinch-hitting for an ailing Ted Kennedy, the then-candidate honors the Kennedy’s life of service and implores graduates to wed their lives to others:

Ted Kennedy often tells a story about the fifth anniversary celebration of the Peace Corps. He was there, and he asked one of the young Americans why he had chosen to volunteer. And the man replied, ‘Because it was the first time someone asked me to do something for my country.’ I don’t know how many of you have been asked that question, but after today, you have no excuses.