This has been on the schedule for a long time. You don't get President Clinton on a 24-hour notice.
Jon CorzineThe president of the United States actually has to be able to walk and chew gum at the same time.
John EdwardsSo far the changes in the president in his second term have been mainly of a rhetorical nature.
Brent ScowcroftHard men present hard choices - none more so than Vladimir Putin, the President of Russia.
Hillary ClintonBill Clinton is the greatest president of the 20th century because I played touch football with him.
Al FrankenIn 2004, I joined my father, John Kerry, on the trail in his bid for the United States presidency.
Alexandra Kerry