By Karl Plume and Katha Kalia (Reuters) -Archer-Daniels-Midland cut its 2025 profit forecast for a third straight quarter on Tuesday as U.S. biofuel policy uncertainty and global trade disruptions pressured oilseed crush margins, sending its shares down 8% in pre-market trading. ADM and its agribusiness peers have seen earnings erode in recent quarters due to ample global crop supplies and commodities market upheaval that has thinned margins. U.S. President Donald Trump's tariff threats and shifting dea ...