Street-level bureaucracy (SLB) theory argues that public servants take shortcuts when making decisions about the delivery of public services. These shortcuts can lead SLBs to treat citizens unfairly. Public administration and political science researchers have found some evidence that street-level bureaucrats act in biased ways towards ethnic and racial minorities, citizens of lower socioeconomic status, and religious minorities. I expand on the SLB literature on discrimination by examining whether SLBs discriminate based on the political ideology of citizens. According to the Ideological-Conflict Hypothesis, individuals act in biased ways towards others whose political values conflict with their own. Using the Ideological-Conflict Hypothesis, I test whether SLBs working in local governments discriminate against citizens based on political ideology and whether discrimination is related to type of service delivery (e.g. needs based versus universal). I carry out two audit experiments to test for discrimination. One audit experiment tests for political ideology discrimination in a need-based program among a sample of public housing authorities in the United States (US). The sample is limited to areas where over 60% of citizens voted for the Democratic candidate in the 2020 Presidential Election (n = 274)—and where over 60% voted for the Republican candidate (n = 274). The other audit experiment tests for political ideology discrimination in the delivery of a universal service using a sample municipal parks departments in US cities. The sample is cities with over 25,000 residents where at least 60% of citizens in the county voted for the Democratic candidate in the 2020 Presidential Election (n = 227) and counties where at least 60% of citizens voted for Republican candidate (n = 227). The treatment signals that an email is from a conservative citizen, a liberal citizen, or a citizen with no identifiable political ideology. The results of my dissertation provide some support for the Ideological-Conflict Hypothesis and evidence indicates SLBs discriminate based on political ideology. The results do not find differences in political discrimination for needs-based public service delivery compared to universal public service delivery.