Across the US this year, farmers have seen costs soar and the price of their produce tumble as Donald Trump’s flagship tariffs sparked a trade war with China.

American farmers, who voted en masse for Trump last year, are now warning of the worst economic crisis since the 1980s, when soaring interest rates and a slump in exports saw the price of crops and the value of farmland collapse. About 300,000 farmers defaulted on their loans and thousands were driven into bankruptcy.

“We spent a hell lot of time in China building relationships, building those markets,” he said. “And then you basically piss it all away, to be blunt.”