"Super Delegates" to the Fore

Barack Obama's victories in this week's "Potomac Primaries" have put him slightly ahead of Hillary Clinton in the delegate count as the two seek the Democratic Party's nomination for president.

Many analysts now say neither candidate will earn enough delegates in the remaining primaries to give one of them the necessary number to be declared the nominee. That leaves the decision to the so-called "super delegates." They're party leaders who aren't obliged to vote based on their state outcomes.

Two Massachusetts super delegates recently spoke with WBUR's Bob Oakes about their roles: party activist and Harvard lecturer, Elaine Kamarck, who's backing Clinton, and state Party Chair John Walsh, who's an Obama supporter.

Audio for this story will be available on WBUR's web site later today.