American consumers are bracing for gasoline prices to climb back toward US$4 a gallon as renewed hostilities between the United States and Iran drive energy markets higher.

The prospect of a sharp price increase arrives at a politically sensitive juncture, threatening to become a significant liability for the Trump administration and Republican lawmakers ahead of the upcoming midterm elections.

Crude oil prices are climbing sharply as markets reassess the durability of the US-Iran ceasefire.

This repricing of geopolitical risk is reigniting fears that energy costs could drive inflation higher, undoing some of the progress made in stabilizing consumer prices.

The surge in oil prices reflects growing uncertainty over supply disruptions and the potential for broader regional conflict.

The timing of this energy shock is particularly problematic given the current macroeconomic backdrop.