Getting the Donkey out of the Ditch: The Democratic Party in Search of Itself. By Caroline Arden. New York: Greenwood, 1988. 178p. $39.95. - The Paradox of Mass Politics: Knowledge and Opinion in the American Electorate. By W. Russell Neuman. Cambridge: Harvard University Press, 1986. 241p. $29.95 cloth, $12.50 paper.