Jon Chait is in good form in The New Republic this week, arguing that Hillary Clinton ought to drop out now since, barring cataclysm, she can't win the Democratic party's presidential nomination. This is true.
Still, I liked Toby Harnden's take best:
It seems that Hillary Clinton is pondering three options: seeking an amnesty deal and fleeing the country; going for an immediate run-off (on April 1st, she suggesting a bowling match with Barack Obama) or declaring a 90-day state of emergency and taking the whole thing into July. But she’s been ignoring pleas from across the civilised world to call it quits, insisting that the people have a right to vote again and again until they get the right answer.
Robert Mugabe, Zimbabwe's beleagured president, finds himself in a similar plight.