In an interview with CNN’s Wolf Blitzer, Speaker of the House Nancy Pelosi, D-California, explained and defended the involvement of so-called “superdelegates” in picking her party’s presidential nominee.

Superdelegates were established, Pelosi explained, in order to allow grassroots Democratic activists to attend the nominating convention without having to compete with high-ranking Democratic party officials for a coveted spot on the convention floor.

http://politicalticker.blogs.cnn.com/2008/02/08/pelosi-defends-democratic-party%e2%80%99s-superdeleg
ates/