This dissertation consists of three projects related to reputational effects in legislative elections. Building on the candidate emergence, repeat candidates and congressional donor literatures, these articles use novel datasets to further our understanding of repeat candidacy and the impact of interest group endorsements on candidate contributions. The first project examines the conditions under which losing state legislative candidates will appear on the successive general election ballot. Broadly speaking, I find a good deal of support for the notion that candidates respond rationally to changes in their political environment when determining whether to run again. The second project aims to measure the impact of repeat candidacy on state legislative election outcomes. Ultimately I find a reward/penalty structure through which losing candidates for lower chamber seats that perform well in their first election have a slight advantage over first-time candidates in their repeat elections. The final chapter of this dissertation examines the relationship between interest group endorsements and individual contributions for 2010 U.S. Senate candidates. The results of this chapter suggest that some interest group endorsements lead to increased campaign contributions, as compared to unendorsed candidates, but that others do not. This research points to a number of opportunities for future research as the relationship between endorsements and campaign resources is vastly understudied. / Political Science