A major policy battle is heating up in Washington. The Trump administration's proposal to cap credit card interest rates at 10% and slash interchange fees has sparked an intense standoff between the banking sector and retail associations, with lawmakers caught in the middle. Banks argue the caps would squeeze their margins, while retailers counter that high swipe fees are eating into their profits. This clash signals deeper tensions over how financial markets should be regulated—a debate that's likely to reshape payment systems and market dynamics for years to come.