Iowa’s cancer problem is scrambling the midterms

Key Points:

• Iowa's rising cancer rates, linked to farm pollution, have become a central issue in the state's 2026 gubernatorial and Senate races, with candidates from both parties promising to address environmental causes of cancer for the first time.
• The "Make America Healthy Again" (MAHA) movement, backed by Robert F. Kennedy Jr. allies, has energized Republican candidates like Zach Lahn, pushing environmental health issues into GOP platforms despite internal party divisions over agricultural practices and chemical use.
• Democrats criticize Republicans for historically siding with agricultural polluters, while Republicans face skepticism over their environmental commitments, particularly regarding pesticides like glyphosate and manure-related nitrate pollution.
• Campaign spending on cancer-related ads in Iowa has surged to nearly $30 million this year, reflecting the issue's political significance, with candidates attacking each other's ties to agricultural interests and their plans to combat the cancer crisis.
• Polls show a tight Senate race and a gubernatorial contest with Democrat Rob Sand leading Republican Zach Lahn, highlighting cancer and environmental health as pivotal voter concerns in Iowa's competitive 2026 elections.