Barack Obama has clinched the nomination based on the preferences of superdelegates and a bare-minimum showing in Montana and South Dakota, according to the AP:
The tally was based on public declarations from delegates as well as from another 15 who have confirmed their intentions to the AP. It also included 11 delegates Obama was guaranteed as long as he gained 30 percent of the vote in South Dakota and Montana later in the day. It takes 2,118 delegates to clinch the nomination.
The 46-year-old first-term senator will face John McCain in the fall campaign to become the 44th president. The Arizona senator campaigned in Memphis during the day, and had no immediate reaction to Obama’s victory.