From "Trump QE" to Credit Card Price Caps: When the White House Begins Setting Interest Rates Directly

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After utilizing Fannie Mae and Freddie Mac to purchase MBS in the mortgage market, dubbed “Trump QE” by the market, Trump has once again reached into a more politically sensitive area—credit card interest rates.

From attempting to lower mortgage costs to proposing a mandatory cap of 10% on credit card interest rates, the Trump administration is using executive power to intervene in what should be a market- and Fed-driven rate-setting mechanism.

This is no longer a scattered policy experiment, but a clear main line: When the Federal Reserve is unwilling or unable to swiftly cut rates, the White House is bypassing the central bank and directly intervening in “the interest rates voters feel most acutely.”

The Essence of the Interest Rate Dispute: Not Inflation, But Voters’ Monthly Payments and Bills

From a political economy perspective, Trump’s intervention is not hard to understand.

In a high interest rate environment, the true and continuous source of political pressure is not the abstract “federal funds rate,” but two indicators that go straight onto household balance sheets: mortgage rates and credit card rates.

The 30-year mortgage rate determines “whether one can buy a house”
The credit card APR directly affects the financing cost of household short-term cash flow

For ordinary voters, these two are much more intuitive and painful than the CPI or core inflation.

After repeatedly and unsuccessfully pressuring the Fed to cut rates, the Trump administration has clearly reached one conclusion: If you cannot change the policy rate, then directly change the endpoint of rate transmission.

Mortgage Intervention: An Administrative Experiment in “Quasi-QE”

In the mortgage market, the Trump administration has chosen a relatively “technical” approach.

By directing Fannie Mae and Freddie Mac to purchase MBS, the White House’s goal is not to directly lower the risk-free rate, but to hedge the demand gap for MBS created by the Fed’s balance sheet reduction, thereby narrowing the spread between mortgage and treasury yields.

Mechanistically, this approach has three main features:

Conducted via market transactions, not direct price setting
Affects rate spreads, not benchmark rates
There are historical precedents from QE

Precisely for these reasons, although this policy clearly carries the “shadow of monetary policy,” the market still reluctantly views it as an “unconventional administrative intervention” targeting housing affordability rather than a direct attack on the financial pricing system.

Credit Card Price Cap: The Leap from Market Intervention to Price Controls

What truly alarms the market is the proposal for a 10% cap on credit card rates.

Unlike mortgages, credit card rates are not simply the cost of funds plus a margin, but the result of a highly risk-based pricing structure:

Unsecured
High default rates
Strong counter-cyclical attributes
Interest income itself is a buffer for bad loans

Currently, the average U.S. credit card APR ranges between 20%–25%. Forcibly pushing this down to 10% is equivalent to directly cutting off the risk pricing mechanism without any fiscal subsidy or risk backstop.

This is why even Bill Ackman, who publicly supported Trump in the past, bluntly called this policy “wrong.” From the market’s perspective, its consequences are not complicated:

If the interest rate is not enough to cover losses and capital returns, the only rational option for banks is to withdraw.

Card cancellation, tighter credit, and subprime borrowers being excluded from the formal financial system, turning instead to even more expensive informal lending channels—this is a scenario that has repeated itself in history.

Bypassing the Fed: Executive Power is Reshaping the Boundaries of Interest Rates

The deeper controversy is not about the effectiveness of any specific policy, but about its establishment of a systemic precedent.

Under the traditional framework, there is a clear division of labor in U.S. economic policy:

Federal Reserve: decides the “price of money”
Executive branch and Congress: decide the “use and redistribution of money”

Now, the White House is using executive action to directly intervene and attempt to rewrite the “reasonable range” of certain interest rates.
This is not a formal takeover of the Fed, but at the functional level it erodes the central bank’s de facto control over interest rates.

If this logic is accepted, then the issue won’t be limited to credit cards:

Are auto loan rates also “too high”?
Do student loans also need a cap?
Are small business financing rates “unacceptable”?

What financial markets fear most is this kind of uncertainty.

Conclusion: The Real Risk Is Not Lower Rates, But the Shift in Pricing Power

From the “Trump QE” to capping credit card rates, these actions all point to one reality: When monetary policy fails to quickly serve political goals, executive power is looking for alternatives.

In the short term, mortgage rates might indeed drop several basis points due to MBS purchases; but in the long run, what the market really needs to assess is a more fundamental question:

If interest rates are no longer mainly determined by risk and capital, but increasingly by political judgment, how will the financial system reprice?

This may be the variable more worthy of vigilance than “whether rates are going down.”

Risk Warning and DisclaimerMarkets are risky and investment requires caution. This article does not constitute individual investment advice, nor does it consider the unique investment objectives, financial situation, or needs of any particular user. Users should consider whether any opinions, viewpoints, or conclusions in this article suit their particular circumstances. Investing accordingly is at your own risk. ```