American soybean farmers are worried about whether their biggest customer will keep buying. More than half of US soybean exports went to China in 2024, but the price just went up 135 per cent under the tariffs China installed in response to President Donald Trump's 145 per cent tax on Chinese imports. "Farmers deal with bad weather. We deal with pests. We deal with tractors breaking," said Ms Heather Feuerstein, who owns a farm near Grand Rapids, Michigan. "That's our lives." But tariffs? "This is a threat to our continued way of life," she said.