Imagine it is January 21st 2009. You are President Barack Obama and Hillary Clinton is your vice-president. She's already demanded her old office back in the West Wing. You've learned from CNN that Bill Clinton is on a jet with Ron Burkle heading for Kazakhstan. Drudge has a flashing siren up beside a report from a British tabloid about a mystery blonde who emerged from the former president's apartment in at his library in Little Rock just before dawn last week. The blonde is promising a full interview tomorrow. Mark Penn, White House counselor, is busy polling whether a divorce...