Middle-Market Public Policy Roundup
                    Sen. Orrin Hatch announced his retirement, opening a key chairmanship on the Senate Finance Committee. Plus, regulators gear up to take on bitcoin, and the ACA faces new challenges.                    
                    
                    
                     
                The middle market represents an integral component of the U.S. and global economy, spanning all industry segments. Check out the latest stories, broken down by sector.