The question "Why is Hillary still running?" has been asked several times, but the suspected answer usually involves political power. Ten days ago I blogged on wordpress about an article titled "Finance law may keep Clinton in"
A little-known provision of a 2002 campaign-finance law cosponsored by McCain prevents candidates who drop out of the race from raising money after the nominating conventions to repay themselves for personal loans.
If Clinton fails to come up with the funds by the Democratic convention in August and she fails to gain the nomination, she will be out the $11 million. If she quits before then, she may find it hard to get people to keep giving cash so she can retire her debt.
I really hope that it isn't as simple as that...
[Edit] An alternate possibility is that maybe she's visited the 8th dimension...