The fact that Barack Obama apparently won North Carolina so easily — the race was called the minute the polls closed — ensures that Hillary Clinton will come under the most withering personal assault of her career should she fail to drop out of the race tomorrow. It will be far worse than the Republican “attack machine” because it is going to come from her fellow party members, her peers, and even a great many of her supposed friends. This is the kind of heat she has never had to feel. Ever. She may be tough enough to withstand it, but in what way could she possibly benefit from doing so?