Ari Berman's debut book, Herding Donkeys: The Fight to Rebuild the Democratic Party and Reshape American Politics (Farrar, Straus and Giroux) is out. What the Wall Street Journal calls "a well-reported tour de force" is the first book to chronicle the rise and (possible) fall of President Obama's grassroots political movement and the pitched battle taking place between grassroots activists and Beltway denizens inside Obama's Democratic Party.