I know the title implies USA but in the global credit card market, there actually is a 3rd contender called UnionPay. In fact, by volume, it already exceeds Mas

I know the title implies USA but in the global credit card market, there actually is a 3rd contender called UnionPay. In fact, by volume, it already exceeds MasterCard.[1] [1]https://nilsonreport.com/upload/Cover-1224-600.gif https://nilsonreport.com/upload/Cover-1224-600.gif