Donald Trump promised to make America’s adversaries pay for his wars, but American voters have punished his party for making them pay instead.
According to the findings of a poll conducted immediately before the elections, 48% of registered voters identified the cost of living as their most important electoral concern, compared with 26% who prioritized democratic norms and 13% immigration. Meanwhile, 55% believed the Iran war was not worth its cost, against just 25% who considered it worthwhile.
The economic consequences of the war were substantial. Since the United States and Israel launched their military campaign against Iran in February, disruptions to Middle Eastern oil shipments have driven up American energy prices. Reports show that gasoline prices had reached $4.33 per gallon by October, approximately 45% above prewar levels, while diesel prices had increased by 68%.
The consequences extended well beyond gasoline stations. Higher diesel prices increased transportation and distribution costs, while rising aviation fuel expenses contributed to airfares climbing approximately 22% compared with the previous year. These increases placed additional pressure on household budgets already strained by persistent inflation.
Estimates show that, by November 4, higher motor-fuel prices attributable to the war had imposed approximately $967 in additional costs per American household. Roughly half came from direct fuel purchases, while the remainder reflected higher costs transmitted through businesses and the wider economy. A broader estimate by Moody’s Analytics chief economist Mark Zandi placed the average household’s war-related economic burden at approximately $2,000 by October, incorporating higher energy costs, borrowing expenses and an allocated share of military expenditure. The latter represents a public-finance burden rather than an immediate household payment.
These estimates measure overlapping effects and cannot be added together. Nevertheless, they demonstrate that the war’s economic consequences were neither speculative nor insignificant. More importantly, for Americans struggling to pay bills, the distinction between foreign policy and domestic economic management had effectively disappeared. A war fought thousands of miles away was affecting the cost of driving to work, transporting goods and servicing household debt.
Trade Wars and the Cost of American Power
The Iran war, however, was only one dimension of a broader economic confrontation initiated by the Trump administration. Since returning to office in January 2025, Trump has repeatedly employed tariffs against major trading partners, including China and the European Union, presenting economic coercion as a means of restoring American industrial strength and extracting concessions from foreign governments.
Yet tariffs also impose costs on the economy that introduces them. American importers pay customs duties, while the resulting burden is distributed among businesses, foreign suppliers and consumers. Manufacturers dependent on imported components face higher production costs, while retaliatory measures can undermine American exports.
Research by Yale University’s Budget Lab estimated in April 2026 that the prevailing tariff regime would produce an average household purchasing-power loss of approximately $760–$940 under its baseline assumptions. If temporary tariffs became permanent, the estimated loss would rise to $1,200–$1,500. The Budget Lab also found evidence consistent with tariffs raising consumer prices, although it cautioned that separating their effects from other economic developments remained difficult.
The United States’ financial commitment to Ukraine also illustrates the domestic political tensions surrounding overseas engagement. According to the Council on Foreign Relations, Congress had made approximately $196 billion available for Ukraine by June 2026, including roughly $127 billion in direct assistance.
Taken together, these policies exposed a fundamental contradiction in Trump’s economic nationalism. The administration sought to demonstrate American power by imposing military and economic costs abroad but underestimated the extent to which those costs would return to the United States through globally interconnected markets.
When Economic Pain Becomes Electoral Defeat
The clearest political expression of this contradiction emerged in Texas, one of America’s most reliably Republican states. In an extraordinary electoral reversal, Democrat James Talarico defeated Trump-backed Republican Ken Paxton in the US Senate race, while Gina Hinojosa unseated three-term Republican Governor Greg Abbott. As Reuters reported, Hinojosa’s victory ended more than three decades of Republican control of the governor’s office. Democrats also captured control of the state House. These defeats were particularly striking given the extraordinary financial resources deployed to prevent them.
According to Federal Election Commission data analysed by The Guardian, Elon Musk contributed at least $446 million to Republican-aligned political organisations during the election cycle, including $216 million to his America PAC. Texas became a central focus of his efforts, with America PAC spending at least $28 million attacking Talarico alone. Yet, the financial offensive failed. Democrats won all five Senate contests in which America PAC invested most heavily, including Texas, Iowa, Michigan, Maine and Ohio.
Texas cannot be explained by economic dissatisfaction alone. Republican candidate controversies, immigration enforcement, corruption concerns and changing voter coalitions also mattered. Nevertheless, the state’s results illustrated the limits of political messaging and unprecedented campaign spending when voters were dissatisfied with their material circumstances.
The backlash extended into rural America. Reuters reported Democratic gains in traditionally Republican areas where farmers faced pressures from tariffs, higher fuel costs and broader economic uncertainty. National exit polling reinforced the connection. Nearly nine in ten voters considered living costs a crucial or major electoral issue, while approximately two-thirds blamed Trump for high prices. Many believed his policies, including tariffs and the Iran war, had worsened their economic circumstances.
The results do not establish that economic grievances alone caused the Republican defeat. But they reveal the political vulnerability of an administration whose international ambitions increasingly conflicted with its domestic economic promises.
Trump had returned to power promising prosperity, lower prices and renewed American strength. Yet voters were experiencing an increasingly expensive form of international assertiveness, with few immediate benefits to their household finances.
The Domestic Limits of American Power
The midterms expose a constraint on American power that military superiority and economic size cannot overcome: the political consequences of imposing international costs on an economically interconnected society. Trump’s mistake was not merely underestimating the resistance of foreign adversaries. It was assuming that the United States could wage military and economic confrontations without exposing its own citizens to substantial costs.
That assumption may become increasingly difficult to sustain as Washington confronts China, manages Middle Eastern instability and negotiates its relationships with traditional allies.
The election suggests that Americans’ willingness to support geopolitical assertiveness remains conditional on their own economic security. A foreign policy that promises national strength but produces domestic hardship eventually undermines its political foundations. Trump’s wars were intended to demonstrate America’s power abroad. Instead, they have revealed how the exercise of that power can become a source of political weakness at home.
Salman Rafi Sheikh, research analyst of international relations and Pakistan’s foreign and domestic affairs
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