Since Obama is most likely going to win South Dakota and Montana, why is Hillary still in the race?

The Clinton's would make Prince Machiavellian blush with pride. Perhaps Hillary is attempting to bail out her million dollar debt at the expense of her supporters. In addition; I believe she is brokering herself into position for VP, Supreme Court or Majority Leader in the Senate. In any case; her negativity has grown more and has polarized more voters than ever.