The 10% Credit Card Cap Nearly Everyone Wants — And Almost Nobody Would Qualify For

What happens when nearly eight out of ten Americans agree on something that would almost certainly backfire on most of them?

That's the question sitting underneath a Wall Street Journal poll making the rounds this week, which found broad, cross-partisan support for a set of economic policies that would have sounded at home in a Bernie Sanders stump speech a few years back. Jack Armstrong flagged one number in particular: 79 percent support for capping credit card interest rates at 10 percent.

Armstrong called the finding "amazing" and said it troubled him. The reaction that followed on the broadcast was blunter: "I read that with horror myself."

The alarm isn't really about the politics. It's about the mechanics. Capping interest rates doesn't make credit cheaper for everyone who currently has it — it changes who gets offered credit in the first place. Card issuers price risk into interest rates. Take away the ability to charge 24 or 28 percent to a borrower with a thin credit file or a history of missed payments, and the business response isn't generosity. It's exclusion. Lower limits, tighter approval standards, fewer cards issued to exactly the people a 10 percent cap is supposed to help. That's the argument Armstrong made, and it tracks with how consumer lending has behaved historically whenever rate ceilings have been imposed — though it's worth saying plainly that's an inference about likely market response, not a measured outcome from this specific policy, because the policy doesn't exist yet.

Here's the part that got lost in the broadcast but shouldn't get lost in the conversation: capping interest rates isn't new, and it isn't even hypothetical. California has had a usury cap written into its own constitution since the 1930s — Article XV sets a default limit of 7 percent on consumer loans, 10 percent for anything tied to the sale of goods. On paper, California already has the exact policy 79 percent of poll respondents say they want.

The reason you've never heard about it is federal preemption. National banks chartered under federal law are exempt from state usury limits under a provision of the National Bank Act, a rule the U.S. Supreme Court upheld decades ago. So California's constitutional rate cap applies to a shrinking slice of small, state-chartered lenders, while the Chases and Capital Ones of the world operate under whatever rate they can get a federal charter to allow, regardless of what Sacramento's founding document says.

That's the detail worth sitting with. This was supposed to be a state's call. Setting usury limits is about as traditional a state police-power function as exists in American law — older than the Federal Reserve, older than the income tax. Washington didn't ban state usury caps outright; it just built a legal workaround that lets the biggest lenders route around them. If 79 percent of the country wants a 10 percent ceiling, the honest fight isn't a new federal law. It's whether Washington should keep letting its own banking charter override the states that actually tried to set a limit.

None of which answers whether a 10 percent cap is good policy. The case against it — fewer approvals, lower limits, a shrunken pool of eligible borrowers — is a real economic argument, made plainly on the broadcast, and it deserves to be treated as an argument rather than dismissed as alarmism. But the poll numbers say something else worth noting on their own: a public weary enough of interest-rate math to back a number that sounds simple, fair, and almost certainly isn't free. Whether that's ignorance, anger, or plain fatigue with how expensive borrowing has gotten, it's a sentiment showing up in a national poll with a number attached to it. What politicians do with that number, and which level of government they claim the authority to use it from, is the part still unsettled.