As one of the most antagonistic lobbying battles in Washington escalates -- where financial institutions like JPMorgan Chase and Visa are sparring with companies such as Walmart over credit card swipe fees -- a powerful ally is again sticking up for the retailers.

A large investor in the prepaid card pioneer Green Dot plans to nominate three directors to the prepaid card company's board, as the activist investor group seeks to remove founder and Chief Executive Steve Streit.

A consumer group argues in a new report that banks are being too aggressive as they try to persuade their customers to switch to the electronic delivery of monthly statements. Now it's calling for the CFPB to step in.

Citigroup said it agreed to buy American Express' stockpile of U.S. credit card loans made to shoppers of Costco Wholesale, as the fourth-largest U.S. bank takes over a card partnership with the retailer. Terms were not disclosed.

Citigroup said it agreed to buy American Express' stockpile of U.S. credit card loans made to shoppers of Costco Wholesale, as the fourth-largest U.S. bank takes over a card partnership with the retailer. Terms were not disclosed.

Green Dot reported a larger fourth-quarter loss on higher employee compensation costs and said it will book an extra $11 million in expenses to roll out a new card product.

Chase Pay is tied to the issuer's 94 million credit, debit and prepaid card accounts, representing half of U.S. households. Depending on the perspective, this means Chase's wallet either starts with — or excludes — half of the market.

Instead of focusing on the effect of swipe fee rules on banks and credit unions, retailers should ask why the Durbin amendment hasn’t produced the promised cost savings for their consumers.

USAA has eliminated foreign transaction fees for its credit cards.

Not only does evidence point to small banks escaping interchange restrictions — as Congress intended — but there are also signs smaller institutions are gaining retail market share because of the exemption.