Former Walmart US CEO says Congress should consider splitting up Amazon By: CNBC.com News March 29, 2018 at 18:14 PM EDT Two retail experts weigh in on Amazon's influence, saying the e-commerce company has created a playing field that is not level. Read More >> Related Stocks: Amazon.com Costco Wholesale Darden Restaurants J C Penney Company Inc Wal-Mart Stores, Inc.