Move to the Center or Mobilize the Base?
James Adams
Department of Political Science
University of California, Davis
Thomas L. Brunell
School of Social Sciences
The University of Texas at Dallas
Bernard Grofman
Department of Political Science
and
Center for the Study of Democracy
University of California, Irvine
Samuel Merrill, III
Department of Mathematics and Computer Science
Wilkes University
*We are indebted to William Koetzle for providing us access to data on district demographic ho
mogeneity, and to Keith Poole for making available to us PooleRosenthal DWNOMINATE data
for the House for the period of interest. We also owe special thanks to Clark Bensen of POLIDA
TA who routinely provides us with high quality data. We are indebted to Clover Behrend for bib
liographic assistance. The listing of authors is alphabetical.