How does the Pennsylvania Democratic Senate primary end? Last month, most observers could have told you: with a decisive victory by Sen. Arlen Specter. But things have changed dramatically since then, setting the stage for a knock-down, drag-out final push to the May 18 primary with a final result that’s anyone’s guess.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=126758