Declining revenues from offline and online ads has led publishers to pursue new avenues, such as native advertising: camouflaging ads as news. Critics of native advertising claim that this form of advertising blurs the boundaries between editorial and commercial content, and can reduce the audiences’ trust in editorial content. However, little research has assessed the possible effects of native ads on audiences’ trust in news. With an experimental design embedded in an online survey (N = 733) representative of the Norwegian population, this study explores the consequences of political native advertising for citizens’ trust in political news. This article discusses how political native advertising poses a challenge to the boundary between journalism and advertising as well as the boundary between journalism and powerful elites. Our study examines (1) how prominently native advertisements should be labelled in order for readers to recognize them as advertising content and (2) whether exposure to such ads reduces readers’ trust in political news. Our most important finding shows that when explicitly labelled, native advertising by political parties can reduce people’s trust in political news.