Federal pesticide regulations are increasingly splitting the GOP ahead of the 2026 midterm elections, pitting industrial farmers against Make America Healthy Again activists.

Glyphosate, the chemical in the household weedkiller Roundup, is the most common pesticide used in agriculture, but a swath of the MAHA coalition that helped President Donald Trump win back the presidency in 2024 is disappointed in his administration’s failure to tighten regulations on the herbicide.