President Donald Trump’s alliance with the “Make America Healthy Again” movement helped expand his coalition during the 2024 election. Now, as tensions emerge between the administration and some of the movement’s most vocal activists, Republicans are grappling with how much political influence the MAHA coalition actually holds ahead of the 2026 midterm elections.

The debate intensified after Trump signed an executive order aimed at boosting production of glyphosate, one of the most widely used herbicides in the world. The move angered activists who had rallied around Health and Human Services Secretary Robert F. Kennedy Jr.’s push to reduce toxic exposures in food and agriculture.