%0 Journal Article %T Party Polarization and 'Conflict Extension' in the American Electorate %A Layman, Geoffrey C. %A Carsey, Thomas M. %D 2002 %P 786-802 %J American Journal of Political Science %V 46 %I 4 %2 ISSN: 0092-5853 %U http://www.jstor.org/stable/3088434