Senator John Kerry will address the Democratic National Convention tonight during the primetime hour of 10 PM. Rumor has it that he will address the president's record on national security.
There is some speculation on The Hill's part that he could be the next Secretary of State. It's possible that it could happen. He's currently the chairman of the Senate Foreign Relations Committee in early 2009 following Joe Biden leaving the Senate.
I think Kerry would make a great Secretary of State. He has the leadership abilities required for such a position.