USA: The Supreme Court and the Limits of Executive Power

On April 2, 2025, standing in the White House Rose Garden, President Donald Trump declared what he called “Liberation Day.”

By signing Executive Order 14257 under the International Emergency Economic Powers Act (IEEPA), the administration imposed sweeping “reciprocal tariffs” on foreign imports. The justification was expansive: the persistent U.S. trade deficit—exceeding $1.2 trillion annually—was declared a national emergency.

Blanket tariffs were applied to nearly all trading partners, with rates reaching as high as 50 percent. The objective was explicit: compel bilateral negotiations, extract investment commitments, and accelerate industrial reshoring.

Several major economies accepted negotiated ceilings in exchange for investment pledges:

• Japan agreed to a 15% tariff ceiling alongside $550 billion in semiconductor and AI investment.

• South Korea committed $350 billion in industrial expansion.

• The European Union accepted a 15% framework tied to energy and chip procurement commitments.

• Indonesia negotiated 19%.

• India negotiated 18%.

For the first time in modern history, tariff policy became an instrument of direct geopolitical leverage.

The underlying assumption was clear: the executive branch could unilaterally reshape the international economic order.

That assumption ended on February 20, 2026.

The Supreme Court Draws a Boundary

In Learning Resources, Inc. v. Trump, the U.S. Supreme Court ruled 6–3 that the administration’s use of IEEPA to impose broad-based tariffs exceeded constitutional limits.

The Court held that:

• Trade deficits do not constitute the type of emergency contemplated under IEEPA.

• Congress had not clearly delegated tariff authority of such magnitude.

• Broad reinterpretations of open-textured statutes to justify sweeping economic transformation violate constitutional structure.

The ruling did not eliminate tariff authority altogether. Within hours, the administration pivoted to Section 122 of the Trade Act of 1974, imposing a temporary uniform 10% tariff.

But Section 122 carries strict constraints: a 150-day limit and nondiscriminatory treatment.

The country-specific leverage architecture collapsed instantly.

The Fiscal Consequence

The economic significance of the ruling extends well beyond trade policy.

The Liberation Day tariffs had produced:

• An effective U.S. tariff rate near 17% — the highest since the 1940s.

• Hundreds of billions in projected annual revenue.

• Negotiated investment commitments exceeding $2 trillion.

Critically, tariff revenue had been embedded into the 2025 budget reconciliation package.

The One Big Beautiful Bill Act, signed July 4, 2025, extended major corporate and high-income tax cuts. The Congressional Budget Office scored the legislation as increasing primary deficits by $3.4 trillion over the 2025–2034 period, rising above $4 trillion including interest.

Tariffs were designed to function as the principal fiscal offset.

A recent Federal Reserve paper estimated that approximately 96% of the tariff burden was ultimately borne by U.S. consumers.

The Supreme Court decision removes an estimated $1.5 to $2.4 trillion in projected revenue over the next decade.

This is not a marginal adjustment. It is a structural fiscal gap.

The United States already faces:

• Budget deficits near 7% of GDP.

• Net interest costs approaching $1 trillion annually.

• Federal debt exceeding 120% of GDP.

Fiscal arithmetic is not ideological. It imposes itself.

Financial Fragility

The ruling arrives as the U.S. economy shows visible deceleration.

Fourth-quarter 2025 growth slowed to 1.4% annualized, down from 4.4% in Q3. Full-year growth for 2025 came in at 2.2%, below 2024 levels.

The U.S. economy is primarily consumption-driven — and consumption is highly sensitive to asset prices and interest rates.

The top 10% of earners now account for roughly 49% of consumer spending, reflecting an increasingly K-shaped structure. Middle- and lower-income households carry record debt burdens. Total household debt stands at a record $18.8 trillion, or approximately 65% of GDP.

Every 1% increase in effective interest rates translates into roughly $188 billion in reduced disposable income.

Should structural budget deficits widen further, upward pressure on long-term yields could intensify. A move above 5% on long-term rates would materially challenge current equity valuations and amplify negative wealth effects.

The risk is tightening financial conditions interacting with fiscal vulnerability.

The Geopolitical Implication

The cancellation of negotiated country-specific tariffs removes a core instrument of U.S. leverage.

Because these agreements were never ratified by Congress, their legal durability evaporates alongside the IEEPA framework.

Temporary uniform tariffs do not provide targeted bargaining power.

Investment commitments from Japan, India, Europe, and others become politically reconsiderable. Industrial reshoring transitions from enforcement to negotiation.

At the same time, strategic dependencies remain acute. China continues to dominate global rare earth refining — a critical input for defense systems and advanced manufacturing. Domestic capacity development requires a decade or more while the US military and defense industry crucially depends on magnets.

Trade leverage has been legally constrained precisely where industrial dependence remains unresolved.

Institutional Signal

The broader constitutional message is significant.

The Court signaled heightened scrutiny of expansive statutory delegations under the “major questions” doctrine. Future presidents, regardless of party, will face tighter boundaries around the unilateral use of executive powers.

The United States retains immense structural strengths. But its ability to weaponize trade policy without congressional alignment has been materially limited.

Coercion gives way to negotiation. Multilateralism regains relevance.

Confidence and Constraint

For decades, American power rested on a paradox:
The United States could sustain persistent deficits because global capital trusted its institutions.

Foreign investors hold approximately 30 % of total US assets outstanding:

• $8 trillion in U.S. Treasuries

• $17 trillion in U.S. equities

• $6 trillion in U.S. corporate debt

That external financing underpins both fiscal operations and asset valuations and constitutes a major vulnerability.

Economic systems do not destabilize merely because debt rises.
They destabilize when sustainability is questioned.

The Supreme Court ruling did not cause structural fiscal weakness. It exposed it.

February 20, 2026 may be remembered not as a tariff decision, but as the moment when two boundaries became visible simultaneously:

• The constitutional limits of executive power.

• The fiscal limits of deficit expansion.

Empires rarely decline abruptly. They weaken when borrowing costs rise and political leverage diminishes.

The world is watching both.