The Superdelegate Dilemma

A Washington Post article nicely illustrates a point from yesterday's class:

In an interview [Trenton Mayor Doug] Palmer still sounded riled about a few things he had heard about. One of them, reported by the Associated Press, was a private conversation between Rep. Emanuel Cleaver (D-Mo.), a Clinton supporter, and Rep. Jesse Jackson Jr. (D-Ill.), one of Obama's national campaign co-chairmen. Both
lawmakers are superdelegates. Jackson had asked Cleaver if he wanted to go down in history as someone who prevented an African American from occupying the White
House for the first time. Separately, Jackson told the AP that supporting Clinton in districts where Obama won overwhelmingly might place those politicians at risk of a primary challenge.