Populist radical right (PRR) political parties have become important players in many European countries. These parties generally have a core ideology of ethnic nationalism supported by antiestablishment populism and sociocultural authoritarianism. PRR parties have managed to find electoral success in many European countries over the last few decades, usually at the expense of more established mainstream parties. The success of PRR parties is dependent on both voters and the parties themselves. In other words, parties must frame issues in a way that appeals to at least some voters while voters must have some reason for supporting these parties. This thesis looks at Denmark and Sweden, two countries with relatively similar cultures, political systems, and economies that have had different experiences with PRR parties. An analysis of socioeconomic factors highlights certain traits that makes voters more likely to vote for PRR parties, namely education and unemployment. Additionally, PRR party rhetoric likely appeals to socioeconomically disadvantaged voters by promising improved welfare and shifting the blame for their troubles to immigrants. In sum, this thesis suggests that PRR parties will continue to find electoral success as long as immigration maintains a high level of political salience, as PRR parties can use anti-immigration rhetoric to attract the socioeconomically disadvantaged. / Master of Arts / Populist radical right (PRR) political parties have become important players in many European countries. These parties generally have a core ideology of ethnic nationalism, a form of nationalism defined by ethnicity and focusing on a shared heritage. PRR parties also generally espouse antiestablishment populism by trying to appeal to the masses through critques of the government and established political parties. These parties also tend to embrace sociocultural authoritarianism, the desire for strict obedience to authority as it pertains to society and culture. This thesis looks at Denmark and Sweden, two countries with relatively similar cultures, political systems, and economies that have had different experiences with PRR parties. However, PRR parties have been electorally successful in both countries over the last decade. This thesis examines socioeconomic factors that may affect the likelihood of voters to vote for PRR parties, and determines that education and unemployment can play a large role in voter attitudes. Additionally, this thesis analyzes PRR party rhetoric and ascertains that these parties likely appeal to socioeconomically disadvantaged voters. In sum, this thesis suggests that PRR parties will continue to find electoral success as long as immigration remains an important political issue, as PRR parties can use anti-immigration rhetoric to attract the socioeconomically disadvantaged.