The Importance of Race and Ethnicity in Congressional Primary Elections

Research regarding the electoral importance of race and ethnicity in congressional elections is limited by the overwhelming focus on general-election outcomes. This article seeks to extend this research by examining minority candidate emergence and electoral competition in U.S. House primary elections, using a new data set on all U.S. House contests between 1994 and 2004 that includes demographic information on all the candidates in the primary elections. The results indicate that district-level race and ethnicity are associated with minority candidate emergence; furthermore, the presence of minority candidates influences electoral competitiveness in primary elections.