Perhaps further fueling speculation that Barack Obama may replace Joe Biden on the Democratic presidential ticket with, say, Hillary Clinton, take a look at part of the president's schedule for today:
10:15AMTHE PRESIDENT and THE VICE PRESIDENT receive the Presidential Daily Briefing Oval Office Closed Press
10:45AMTHE PRESIDENT and THE VICE PRESIDENT meet with Secretary of State Clinton Oval Office Closed Press
12:30PMTHE PRESIDENT and THE VICE PRESIDENT meet for lunch Private Dining Room Closed Press