UPDATE 3-U.S. Supreme Court struggles with e-commerce sales tax case By: Reuters: Company News April 17, 2018 at 14:09 PM EDT * South Dakota is backed by the Trump administration (Adds quotes from Justices Kagan, Gorsuch, Roberts and Alito) Read More >> Related Stocks: Amazon.com Etsy Inc Macy's Overstock Com Ord Shs Target Corp Wal-Mart Stores, Inc. Wayfair Inc eBay