Iran-induced fertilizer shortage threatens Republicans in farm states

The Strait of Hormuz shutdown caused by the war in Iran is jacking up fertilizer prices, hitting farmers in their pocketbooks and threatening to raise food prices.

Now, Democrats trying to win the U.S. midterm elections in November see another new opportunity to pound the affordability crisis and turn the tide after years of losses in the states that produce crops and livestock.

The Strait of Hormuz is a critical channel for fertilizer, including about 50 percent of global nitrogen-rich urea fertilizers, according to the Fertilizer Institute, the industry’s trade association. The Strait has been effectively impassable since President Donald Trump launched the assault, which is now dragging into its third week with no end in sight.

The closure has spiked fertilizer prices just before planting season, potentially scrambling decision-making for farmers across the U.S. And it comes on top of already low commodity prices that have lingered for years and eaten into farmers’ margins.

“We’re in uncharted territory,” Matt Frostic, a Michigan farmer who sits on the board of the National Corn Growers Association, said in an interview with CNBC. “It’s like a code red.”

Frostic said he purchased nitrogen fertilizer, critical for corn crops, in January for around $350 per ton. That same product, he said, is now closing in on $600 per ton.

The murky farm outlook also comes eight months before the midterm elections that could cost Trump control of both the House of Representatives and Senate. Democrats, who are trying to win competitive seats in farm-heavy states like Iowa, Minnesota and Nebraska, are jumping on the high fertilizer prices as a new example of the affordability issue that continues to haunt Trump and Republicans.

“There are tons of people just like me in our district who are like, I don’t get it. I don’t understand. It was already hard, and now they’re making it harder, and nobody knows why,” said Jake Johnson, a public schoolteacher who is running for Congress in Minnesota’s first district against incumbent Republican Rep. Brad Finstad.

“Our number one job as a campaign and what we want to talk about to every single person we talk to is we need ways to make things cheaper,” Johnson said.

The rural entreaties from Democrats come after years of bleeding support in the country’s rural, agrarian states in the middle of the country. Trump in 2024 won nearly every state in the Midwest, with exceptions in Minnesota and Illinois. He also dominated the county-by-county contest according to the Center for Politics, winning 2,660 counties compared to former Vice President Kamala Harris’ 451, which were centered in the most populated parts of the U.S.