Capping credit card interest rates at 10% could save consumers billions of dollars, but potentially hurt lower-income Americans, experts said.

A new report from the US Treasury released Tuesday showed that $27.89 billion in tariff revenue came into US coffers in December, capping off a year that saw President Trump reorder US trade policy.

A targeted mortgage bond purchase could help lower rates, but affordability may still be an issue as long as supply is constrained.