Justice Hillary?

Interesting op-ed piece in today's Washington Post. James Miller proposes that Obama promise Hillary a Supreme Court appointment if a current Justice were to retire during his presidency.

If Obama were to promise Clinton the first court vacancy, her supporters would actually have a stronger incentive to support him for president than they would if she were going to be vice president. Given the Supreme Court's delicate liberal-conservative balance, she would play a major role in charting the country's future; there is no guarantee that a Clinton vice presidency would achieve such importance.