Kevin Warsh is taking over the Federal Reserve this Friday, and Wall Street can’t stop talking about “regime change.” But before you get caught up in the hype, here’s the reality: what Warsh actually wants to do is far more technical, far more boring, and potentially far more important than most of the speculation suggests.
He’s not coming in with a sledgehammer. He’s coming in with a spreadsheet.
The real fight brewing at the Fed isn’t about whether rates go up or down next quarter. It’s about the Fed’s $6.8 trillion balance sheet and whether the central bank should keep using it as a regular policy tool or reserve it strictly for emergencies. That might sound like inside baseball, but the stakes ripple through everything from mortgage rates to how Treasury markets function to whether we get another financial crisis.
The Balance Sheet That Ate America
Let’s establish the scale of what we’re talking about here. Before 2008, the Federal Reserve had roughly $800 billion in assets. The financial crisis changed that. By some point, it swelled to $9 trillion. Today it sits at $6.8 trillion, which equals about 23 percent of the entire U.S. economy. Seven times what it was before the crisis.
That’s not normal. And Warsh has called it “bloated.”
The Fed built this fortress by buying Treasuries and mortgage-backed securities, a practice designed to stabilize markets and ease financial conditions. For most of the post-crisis era, that’s been standard procedure. Stock market jittery? Fed buys assets. Credit markets seizing up? Fed buys more assets. It became so routine that Wall Street started assuming it would keep happening.
That’s the old regime. Warsh wants to change it.
The incoming chair has spoken in broad strokes about shrinking the Fed’s footprint, but what that actually means is the real debate. Should the central bank continue using its balance sheet as a regular tool for influencing financial conditions? Or should it only pull that lever when the financial system is genuinely breaking down?
The Repo Revolution Nobody’s Talking About
Here’s where it gets interesting. Some economists are already gaming out what a Warsh-era operating framework might look like, and one idea is particularly provocative.
TS Lombard’s chief U.S. economist Steve Blitz has suggested that the Fed could shift focus from the federal funds rate (the rate banks charge each other for overnight lending) to the overnight repo market, the short-term funding system that underpins Treasury market function. In Blitz’s framing, “the repo rate becomes the policy rate.”
That sounds like jargon soup, but here’s what matters: it could theoretically allow Warsh to satisfy Trump’s pressure for lower interest rates while simultaneously tightening underlying financial conditions to fight inflation. You could get the rate cuts the president wants without actually loosening the money supply. It’s a policy sleight of hand that might actually work.
Or it might not. And that’s where things get messy.
The Opposition Is Already Mobilizing
This isn’t a done deal. Fed Governor Michael Barr threw a wrench into the works last week, essentially arguing that obsessing over balance sheet size misses the point entirely. What matters, Barr contends, is how the balance sheet is composed—the duration of assets, the mix, the underlying mechanics. Shrink it the wrong way, he warns, and you don’t get a smaller Fed footprint. You get more volatility, more interventions, and potentially threatened financial stability.
Barr’s core argument has teeth. When the Fed reduces its balance sheet by not reinvesting maturing bonds, it’s removing liquidity from the system. Do that too aggressively, and you starve banks of reserves they need to operate smoothly. Try to compensate with other Fed tools, and suddenly you’re not shrinking the footprint at all. You’re just changing the form it takes.
The Fed has been operating under a system of “ample” reserves since the crisis—more than typical, but not excessive. Warsh has suggested going back to “scarce” reserves, where the Fed steps in to add liquidity when needed. That’s not crazy. Bill English, the Fed’s former head of monetary affairs now at Yale, says it could work. But, he notes, “you’d want to do it slowly.”
That word keeps showing up. Slowly.
The Consensus Is Already Against Speed
Everyone interviewed for this story agrees on one thing: this isn’t happening next week. Lou Crandall, chief economist at Wrightson ICAP, put it plainly: “Nobody, including Kevin Warsh, is arguing that any of this could be done rapidly.”
The research backs that up. A central bank paper titled “A User’s Guide to Reducing the Federal Reserve’s Balance Sheet” concluded that even achieving $2.1 trillion in reductions through the current framework would take “at least a year and quite possibly several” before implementation could even start. More aggressive cuts to a “scarce reserves” system? That timeline stretches even further.
The Fed isn’t built for sudden changes. The Federal Open Market Committee operates on consensus, and even major policy shifts typically move through years of internal debate. Former Cleveland Fed President Loretta Mester, who attended FOMC meetings under Alan Greenspan, was blunt about this dynamic: “Politics never enters that room.”
That matters because there’s real political pressure building. Trump has already criticized Jerome Powell endlessly, nicknaming him “Too Late” for failing to cut rates fast enough. Warsh inherits that loaded expectation. The market is watching to see if this new Fed chair delivers on rate cuts. But the internal Fed culture pushes toward deliberation, caution, and consensus.
Something will have to give, and history suggests the institution usually wins those battles.
The Real Wildcard: Communication
Here’s what might actually matter more than any specific policy change. The Fed has never set clear rules for when and how it uses its balance sheet. The market has adopted terms like “quantitative easing” for expansion and “quantitative tightening” for contraction, but the Fed itself has never drawn a clean line between using asset purchases for financial stability versus using them for monetary policy reasons.
Warsh could change that. Setting expectations about when the Fed will and won’t intervene could reshape how business and financial markets function. If Warsh establishes a real framework—a clear set of rules about what triggers intervention and what doesn’t—markets would stop assuming unlimited Fed support when things get scary. That’s a regime change that doesn’t require a single rate cut or balance sheet reduction. It just requires communication.
“The Fed hasn’t done a very good job, I think, over time of distinguishing and explaining when it’s using asset purchases for a monetary policy reason,” Mester said. That’s not a failure of competence. It’s a failure of transparency.
Whether Warsh can impose real discipline on something the Fed has spent 18 years making up as it goes remains the biggest open question.
