MAGA delusion: Republicans far more likely than Democrats and independents to believe Trump and RFK, Jr.’s false claim that tylenol use can cause autism

Alex Montero, Grace Sparks et al | Kaiser Family Foundation (KFF) | October 15, 2025

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While few adults across partisanship think that it is “definitely true” that taking Tylenol during pregnancy increases the risk of children developing autism, partisanship does play a major role in public perception of this claim. Democrats (59%) are much more likely than Republicans (12%) to say this claim is “definitely false,” with similar partisan divides occurring among women. Conversely, most Republicans (56%), including most Republican women (54%) say they think it is either definitely true or probably true that taking Tylenol during pregnancy increases the risk of children developing autism.

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Overall, about four in ten (43%) adults say they consider themselves supporters of the MAHA movement, with support closely tied to partisanship and support of the Make America Great Again (MAGA) movement. About three in four (74%) Republicans say they support the MAHA movement compared to about four in ten (38%) independents and roughly one in five (22%) Democrats.

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