Dr. Adam Berinsky: Political Rumors and Misinformation

27 May 2025 · 53 min
Episode

27 May 2025 · 53 min

0:00

In this episode of the Critically Speaking podcast, host Therese Marko interviews MIT political scientist Adam Berinsky about his fifteen‑year research program on political rumors and misinformation, as presented in his book Political Why We Accept Misinformation and How to Fight It. Berinsky explains how he began studying rumors in 2009, defining them as unsubstantiated claims that spread socially, and distinguishes them from broader political misinformation. He describes the modern information ecosystem—face‑to‑face conversation, online social networks, and media outlets—and introduces the concept of "weaponized mistruths," where politicians deliberately spread falsehoods for political gain (e.g., Obama birther claims, death‑panel rumors, Trump’s election‑fraud narrative). Using large‑scale surveys and experiments, he finds that belief in specific rumors is driven by two interacting factors: a general propensity for conspiratorial thinking and partisan bias, with Democrats more likely to accept anti‑Republican rumors and vice‑versa. Repetition and familiarity increase acceptance, while self‑selection (choosing media environments like Fox News or MSNBC) amplifies exposure to partisan rumors. Although Republicans currently spread more unsubstantiated statements, belief rates are similar across parties when controlling for exposure. Berinsky identifies three respondent types—those who affirm the rumor, those who reject it, and those who are unsure—highlighting that the unsure group is most amenable to correction. He reports that fact‑checking and expert messages often backfire because they trigger partisan distrust; instead, the most effective corrections come from messengers who appear to act against their own partisan interests (e.g., a Republican senator debunking death‑panel claims). Corrections tend to fade over weeks as people forget or encounter new misinformation, indicating that one‑off interventions are insufficient. Berinsky argues that limited resources should focus on the movable, uncertain audience rather than entrenched believers, and that changing political incentives is essential for holding politicians accountable for weaponized rumors, though concrete solutions remain elusive.

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