Trump’s Iran-era energy shock is distorting tariffs—so what happens to the US-Iran deal now?

Peter Harrell, a former White House senior director for international economics under the Biden Administration, argued that trade data has not yet caught up with President Trump’s tariff policy changes. Harrell said Trump has not fully returned tariff rates to their original levels, and that the ongoing war with Iran has pushed energy prices higher, complicating the tariff-to-cost transmission. In his view, higher fuel and power costs are acting as a macro override that makes tariff adjustments look different in the data than in policy intent. The implication is that tariff arithmetic is being blurred by an Iran-driven energy shock that is still feeding through to import prices and inflation expectations. Strategically, the cluster points to a US policy environment where economic instruments—tariffs and trade enforcement—are being recalibrated under security pressure from the Iran theater. The US is effectively balancing domestic political goals around trade with the external constraint of energy-market volatility tied to Iran conflict dynamics. That tension matters geopolitically because it shapes Washington’s leverage in any US-Iran deal: if energy prices remain elevated, the political room to offer tariff relief or concessions narrows. Meanwhile, the separate discussion of election security and the DOJ’s posture suggests a broader “balance of power” contest inside the US state apparatus, which can affect how consistently trade and foreign policy are executed. On markets, the most direct transmission channel is energy prices influencing the observed impact of tariffs on import costs, consumer inflation, and corporate margins. If energy costs stay elevated, sectors sensitive to fuel and electricity—transportation, chemicals, industrials, and parts of logistics—face margin pressure even if tariff rates are stable or partially adjusted. The tariff signal may therefore appear weaker or delayed in trade statistics, while inflation-sensitive instruments could price a longer period of cost pressure. Traders may look to proxies such as US import price indices, breakeven inflation, and energy-linked equities and ETFs for confirmation, with the direction skewed toward “higher-for-longer” cost dynamics rather than a clean tariff-driven disinflation. What to watch next is whether Washington accelerates tariff normalization or instead treats energy-driven inflation as the dominant constraint. For the US-Iran track, the key trigger is any movement toward a deal framework that changes expectations for oil and gas risk premia; absent that, tariff effects may remain masked in the data. On the domestic front, DOJ’s plan to deploy 1,000 election monitors and its stance on executive control could become a political variable that influences the cadence of enforcement and policy messaging. The near-term timeline is therefore a two-track sequence: energy-price and Iran-deal headlines that can move macro expectations, and election-security implementation milestones that can affect institutional credibility and policy continuity.

Geopolitical Implications

• 01

  Economic statecraft (tariffs) is constrained by security-linked energy volatility from the Iran theater, reducing US leverage in negotiations.

• 02

  A slower US-Iran deal pace can prolong higher energy costs, tightening the domestic political trade-off between inflation control and trade enforcement.

• 03

  Domestic “balance of power” disputes around DOJ independence may affect the consistency of foreign-policy and trade-policy messaging during negotiations.

Key Signals

• —Oil and gas risk premia trends tied to Iran conflict headlines
• —US import price and CPI components that reflect energy pass-through
• —Any White House or State Department signals on US-Iran deal sequencing
• —Progress updates on DOJ’s 1,000 election monitors and related legal/political reactions