Colin A. Fisk’s research while affiliated with Indiana University East and other places

Partisanship is the dominant force that dictates American electoral behavior. Yet Americans often participate in elections in which either the partisanship of candidates is unknown or candidates from the same party compete, rendering the partisan cue meaningless. In this research, we examine how candidate demographics—specifically gender—relate to voter behavior and candidate selection in these contexts. Leveraging survey data from same-party matchups in congressional elections (resulting from “top-two primaries”), we examine the relationship between candidate gender and undervoting and vote choice. We find that in same-party matchups, women candidates are associated with lower levels of undervoting among women voters. Furthermore, we find that in mixed-gender contests, women voters from both parties and Democratic men are more likely to favor female candidates. The findings presented here have important implications for the literatures on gender and politics, electoral politics, partisanship, and the design of electoral institutions.

Washington and California adopted the Top-Two Primary in 2008 and 2012, respectively. Under this new system, all candidates regardless of party affiliation run against each other, narrowing the field down to the top two for the general election. In some jurisdictions, the general election features two candidates from the same party. Ten percent of California voters chose not to vote in the 2016 U.S. Senate election which featured two Democrats. Using data from the Cooperative Congressional Election Study (2012–2016), I find that among those who vote in the national November elections, orphans, or voters without a copartisan candidate on the ballot are more likely to undervote, opting out of voting in their congressional race. Levels of undervoting are nearly 20 percentage points higher for orphaned voters compared to non-orphaned voters. Additionally, voters who abstain perceive more ideological distance between themselves and the candidates compared to voters who cast a vote. These findings support a multi-step framework for vote decisions in same-party matchups: voters are more likely to undervote if they are unable to vote for a candidate from their party (partisan model), but all voters are more likely to vote for a candidate when they perceive ideological proximity (ideological model).