06/04/2008 07:27 pm ET | Updated May 25, 2011

My Conversation with Ted Sorensen

Earlier today, I spoke with former Kennedy advisor and speechwriter Ted Sorensen as we approach the 40th anniversary of Robert Kennedy's tragic death.

Toward the end of our conversation, I asked him about his support for Barack Obama and how he sees the general election battle shaping up between Senator Obama and John McCain.

The full conversation airs tonight on PBS.