A dispute over the chapter between the author and the Democratic National Committee has added to the party's turmoil as it tries to look forward, not backward.
Progressives hope momentum by Dr. Abdul El-Sayed will give them a signature victory. Centrists warn that picking him will backfire in November. Acrimony is everywhere.
The latest peace proposal calls for warring parties to return to negotiations and continue working out some of the thorny issues that derailed diplomatic efforts.
