With a surge of superdelegates and enough pledged delegates from South Dakota and Montana, Barack Obama has amassed the 2118 delegates needed to capture the Democratic Party's presidential nomination.

It has been a long, hard-fought primary season, and we've been treated to voter participation, fund-raising, and media coverage at scales never before seen. Hillary has yet to concede, but it's clear that she will in the coming days. She still has an opportunity to get out of this race with grace, and I think she will. While she'll certainly be a valuable asset to Obama's general election campaign, I don't think she'd be the best choice for VP, even though she's open to the idea. But that's a conversation for another day.

Now it's time for Obama to set his sights on John McCain without distraction. With the full power of the Democratic Party behind him, I honestly believe that Obama will face little challenge painting McCain as an out-of-touch flip-flopper who can't separate himself from Bush no matter how hard he tries. And I'm sure that all of us in the Harvard Democrats will be happy to help spread that message around campus and beyond.

FYI: included in the giant flow of superdelegates to Obama today was a favorite of ours: Sam Novey's man-crush/employer, Congressman John Sarbanes of Maryland's 3rd district. Mr. Sarbanes, who was uncommitted when he spoke to us this past spring, made it official this evening.