U.S. President Donald Trump said Friday he is preparing a legal order to let farmers and ranchers process their own food, aiming to break what he called a nasty monopoly among the nation’s top processors. In a Truth Social post, he said he was authorizing legal documents to be drawn quickly, without naming a particular food or industry, after earlier signaling a review of beef-processing plant regulations. Four companies—Cargill, Tyson Foods, JBS USA and National Beef Packing Co.—control about 85% of U.S. meat processing, and the Justice Department has been investigating whether meatpackers illegally drove up beef prices. The step comes as the meat processing sector faces a 75-year trough in supply, with rising cattle costs outpacing gains from soaring prices, and as consumers confront higher grocery costs ahead of November’s midterm elections. It also follows backlash over plans to import more tariff-free ground beef, including a proposal for 300,000 metric tons over 90 days that farm groups and some congressional Republicans criticized.