(NAFB.com) – Senator Chuck Grassley (R-IA) and Representative Adrian Smith (R-NE) and 20 of their bipartisan colleagues wrote a letter to Secretary of Commerce Gina Raimondo regarding 2,4-D imports from China and India. The officials cite the International Trade Commission’s antidumping and countervailing investigations. Senator Grassley, a self-proclaimed free trader who’s long worked to combat Chinese dumping, welcomed the news. The lawmakers noted the importance of maintaining producers’ access to adequate 2,4-D supplies amid higher costs for inputs like fertilizers and declining farm income projections. “We’re asking the Department of Commerce to carefully review the facts as it calculates any preliminary duties during this investigation,” the letter says. “Given that there is only one domestic source of 2,4-D with a limited capacity to meet domestic demand, American agricultural producers have to rely on imports to supplement their management plans.” Any changes to the duties on the products may have significant impacts on farmers.