Political scientist in Wall Street Journal

Texas's 35 superdelegates, not bound by the primary or caucus results, include many longtime Clinton political allies, whose support Sen. Clinton might have counted on a few weeks ago. But those votes look less certain as the momentum swings to Sen. Obama, and the role of the superdelegates draws more scrutiny. Most "don't want to be in a position of going against the people," said University of Texas political scientist Bruce Buchanan.

The Wall Street Journal
Texas Two-Step Vote Could Trip Up Clinton
(Feb. 27)