At the heels of the 2024 U.S. presidential election, public attention turned to the role social media influencers played in Donald J. Trump’s decisive win. In the United States, unlike influencers promoting commercial brands, political influencers – that is, social media influencers who associate themselves with political causes – are not required to disclose whether they got paid in exchange for promoting a political organization, party, or campaign. Through a survey of U.S. social media users (n=906), this study explores people’s attitudes toward paid political influencer disclosure. We find that political partisanship impacts support for disclosure: being more conservative is connected to lessened support for disclosure, yet disclosure is of strong bipartisan concern regardless. Our study documents that social media users who care for authenticity – a core currency in influencer ecosystems running on parasocial relationships – also exhibit higher support for disclosure. Yet, at the same time, caveating this empirical relationship between authenticity and disclosure, we also found that those who consumed more political influencer content exhibited lower support for disclosure, pinpointing the normalization of a digital ecology replete with sponsored content. Our study has implications for the broader political communication ecology: As transparency for paid political influencer activities emerges as a topic of public concern, platforms and regulators should advance efforts that provide disclosure about paid political influencer activities to social media users.