Walmart Is Expanding 30-Minute Delivery Service. See WhereWalmart Is Expanding 30-Minute Delivery Service. See WhereWalmart Is Expanding 30-Minute Delivery Service. See Where 

USA TODAY Network / ReutersThe race for 30-minute delivery to your home is heating up. On May 28, Walmart said it was expanding its 30-minute-or-less delivery service. Originally available in seven cities, the expedited service is now available in 33 cities across the United States. The news comes two weeks after competitor Amazon said it was expanding its 30-minute delivery services to dozens of more cities…