Trump made the accusations in a pair of Twitter posts as the two sides launched new trade tariffs in an escalating trade dispute.

Beijing said it would retaliate with tariffs against $60 billion worth of American products after Trump on Monday imposed 10 percent tariffs on about $200 billion worth of imports from China.

Trump said China was trying to use trade to undermine him with his supporters before Nov. 6 congressional election.

"China has openly stated that they are actively trying to impact and change our election by attacking our farmers, ranchers and industrial workers because of their loyalty to me," Trump wrote. It was not clear what statement from Beijing the president was referring to in his post.

"There will be great and fast economic retaliation against China if our farmers, ranchers and/or industrial workers are targeted!" Trump added. Trump won the 2016 presidential contest with strong support from those farmers and blue-collar voters.

In July, Beijing launched a short video in English featuring a talking cartoon soybean vouching for the importance of trade. The cartoon points out that nine out of the top 10 soybean growing states voted for Trump in the 2016 presidential election.

"So will voters there turn out to support Trump and the Republicans once they get hit in the pocketbooks?" asks the bean.

REUTERS