Bayer AG has intensified its state-level lobbying efforts as it faces thousands of lawsuits linked to glyphosate, the active ingredient in Roundup. The company, which acquired Monsanto in 2018, has been directing funds toward political action committees and advocacy campaigns aimed at changing state laws to limit its liability.

Missouri has emerged as a key battleground, with Cole County courts handling tens of thousands of lawsuits against Bayer. Evidence from court proceedings has linked agricultural industry advocacy groups to Bayer-funded campaigns promoting legislation favorable to the company. Since November, the Modern Ag Alliance has spent over $100,000 on a media campaign defending glyphosate.

A bill introduced by state Rep. Dane Diehl (R) seeks to limit legal claims against Bayer by affirming that the EPA’s warning label on Roundup is sufficient under Missouri law. The measure cleared the Missouri House but now faces increasing opposition in the State Senate, where lawmakers from both parties question whether Bayer should receive such sweeping legal protection.

Critics, including state Rep. Mazzie Christensen (R), argue that the legislation mirrors federal liability protections granted under the PREP Act for vaccine manufacturers. Christensen noted that many countries have restricted or banned glyphosate-based herbicides, raising concerns over Missouri’s decision to shield Bayer from accountability.

Beyond Missouri, Bayer and other pesticide manufacturers have ramped up donations to lawmakers across the country. Federal records show that pesticide company PACs have increased their contributions fivefold in recent election cycles, targeting legislators in states where new liability protections are being debated.

Bayer has already set aside $16 billion to cover legal settlements, with $10 billion paid so far. Ongoing lawsuits and state-level legal battles continue to pose a financial risk to the company.