South Dakota Republican Senator Mike Rounds and Minnesota Democratic Senator Tina Smith are inviting members of Congress to join them in signing an open letter to the U.S. Department of Justice to protect consumers and cattlemen from what they call “anticompetitive practices in the beef processing market.” R-CALF USA launched a nationwide, 10-day campaign to get 200 members of the Senate and House to join Rounds and Smith by adding their name to the bipartisan letter. R-CALF USA  CEO Bill Bullard.