I was thinking today he ought to start acting like this is over - like he’s the nominee. He’s been trying to be conciliatory and humble, but enough is enough. He ought to announce his VP and start proposing his presidential cabinet/advisers.
It made a huge difference in public perception when Bush did just this during Florida 2000.
Obama cabinet:
Secretary of Defense - John Vietnam Kerry
Secretary of State - Nancy Pelosi
Secretary of Education and Swimming - Ted Kennedy
Secretary of Homeland Security - Osama Ben Ladin