“The 2010 Dodd-Frank law called for the Fed to cap such fees, which banks charge to retailers when their customers use debit cards to make purchases. Judge Richard Leon of the U.S. District Court for the District of Columbia sided with retailers, who argued the Fed’s 21 cent cap was higher than Congress intended. The so-called Durbin amendment to Dodd-Frank, named for its sponsor, Democratic Senator Richard Durbin of Illinois, was intended to reduce burdens on retailers and hopefully trickle down to consumers in the form of lower prices.”
