Political parties shape electoral outcomes by determining who stands for election and what campaign resources they have at their disposal. The introduction of gender quotas have led party leaders to nominate more women candidates, however, those women disproportionately lose. We contend that one of the reasons that women routinely lose is because party elites withhold the campaign resources necessary to mount an effective campaign. In this paper, we test this resource gatekeeping argument using data on the provision of campaign resources in Brazil. We analyze the distribution of three different types of party resources: candidate identification numbers, financial support, and television airtime. Our findings show that party elites provide female candidates less advantageous candidate identification numbers, less financial support, and less media access than they provide male candidates. Importantly, we do not find that gender gaps in campaign contributions are attributable to differences in candidate quality. This finding suggests that even when women are recruited to run for office, party elites may still undermine their electoral prospects.