The Fix Is Supply. So Why Does Everyone Keep Talking About Rates?

Congress just passed a bipartisan housing bill 390-9 — one of the least divisive votes in recent memory. The Federal Reserve is signaling it may roll back post-2008 mortgage capital rules that pushed banks out of the lending market. So why does housing still feel completely out of reach?

In this episode of The Tradeoff, Mattie breaks down why Washington keeps reaching for the wrong lever. Cutting interest rates feels like a fix — but in a supply-constrained market, cheaper financing just means sellers charge more. The real problem is that the U.S. is short an estimated 8 million housing units, and the political incentives to fix that have never lined up — until maybe now.

Mattie explains why millennials and Gen Z are bearing the brunt of regulations put in place after the 2008 crisis, why the generations most hurt by high housing costs are also the ones least likely to vote, and what it would actually take — in mortgage lending, zoning reform, and new construction — to move the needle on affordability.

What you'll learn:

• Why the House and Senate bills aren't law yet — and what to watch as they get reconciled
• How post-crisis bank capital requirements quietly killed mortgage competition
• Why lower rates and higher affordability often can't coexist
• The one data point that will tell you if any of this is actually working

Keywords: housing affordability, mortgage rates, housing supply, Congress housing bill, Housing for the 21st Century Act, Federal Reserve mortgage rules, first-time homebuyers, millennial homeownership, housing shortage, zoning reform, housing policy 2026

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