Watch the announcement on Obama's website (note: I couldn't get the stream to work on my Mac - I'm waiting for it to be uploaded to his YouTube account).
Full text of the announcement here.
NYTimes article here.
When asked what he tells people who question whether Obama has enough experience to be president, Torrey said: ``I'll say what Barack says, Donald Rumsfeld and Dick Cheney have a great deal of experience.'' Bloomberg