TY - JOUR A1 - Herring, P. T1 - The Problem of Presidential Leadership JF - R. B. Disman (Ed.), The State of the Union. Commentaries on American Democracy, New York (Charles Scribner's Sons) 1965, pp. 98-104. Y1 - 1965 ER - TY - JOUR A1 - Herring, P. T1 - The Case for the American Party System JF - R. B. Disman (Ed.), The State of the Union. Commentaries on American Democracy, New York (Charles Scribner's Sons) 1965, pp. 115-123. Y1 - 1965 ER - TY - JOUR A1 - Herring, P. T1 - American Parties – A Defense JF - M. Curtis (Ed.), The Natur of Politics, New York (Avon Book Division) 1962, pp. 512-518. Y1 - 1962 ER -