Presidential coattails, incumbency advantage, and open seats: A district-level analysis of the 1976-2000 U.S. House elections

This study extends the analysis of presidential coattails to the most recent U.S. House elections. Building upon previous research on this subject, it draws a clear distinction between open and incumbent-held seats and presents evidence about several measures of presidential coattails. In particular, the analysis attempts to estimate, controlling for incumbency, the strength of presidential coattails (the proportion of the vote received by a congressional candidate that is due to the presence of the presidential nominee on the ballot) and the effectiveness of a president's coattails (the number of districts gained or retained by a party because of the net influence of presidential candidates). The results show that, contrary to earlier findings and trends, the unique impact of presidential coattails in open seat races did not decline. The results also suggest that several representatives who played a very prominent role in crafting the Republican strategy to win back control of the House in 1994 were the beneficiaries of the coattail effect.