Saskatchewan farmers are caught in the middle of a U.S.-China trade battle. Following the latest 10 percent U.S. tariff on Chinese goods, China says it will stop buying all U.S. farm products. APAS president Todd Lewis says the trade war is expected to push down grain prices in the U.S., which will have a ripple effect in Canada. Lewis is calling on Ottawa to improve farm support programs to avoid any major downturn in farm income.