The Hillary Clinton campaign just announced that North Carolina Gov. Mike Easley, a superdelegate, has endorsed Hillay Clinton. More here. This is an interesting development on several levels. Having the governor on board could help Clinton eat into some of Obama’s lead in North Carolina. While she’s still unlikely to win in the state a week from today, if she could cut Obama’s margin into the single digits, while edging him out in Indiana, it would bolster her argument that the tide is turning in the race. Also, the fact that a superdelegate is moving into the Clinton camp at this late date — even in a state that Obama is expected to win handily — shows that Clinton has been able to effectively raise doubts about Obama. With that said, keep in mind that to capture the nomination, Clinton will have to win over super delegates at a roughly two to one margin over Obama.