It may come down to Trump using political pressure to force banks to cap interest rates on credit cards

President Donald Trump a week ago told the credit card industry it had until Jan. 20 to comply with his demand for a 10% cap on interest rates. With just days to go, consumer groups, politicians, and bankers alike remain unclear on what the White House has planned and whether Trump even remains serious about the idea.

So far, the White House has not provided any detail about what will happen to credit card companies that don’t lower card rates. White House Press Secretary Karoline Leavitt...