Story Highlights
- National average gas prices stand at approximately $4.52 per gallon, up roughly 50 percent since the Iran war began on February 28
- The federal gas tax of 18.4 cents per gallon funds the Highway Trust Fund, which receives more than $23 billion annually from the levy
- Senator Josh Hawley introduced legislation Monday to suspend the gas tax for 90 days, with a presidential extension option for another 90 days
What Happened
President Donald Trump told reporters in Oval Office remarks Monday that he wanted to “reduce” the federal gas tax, and in a separate CBS News interview said he would pause it “for a period of time.” Asked how long the suspension would last, Trump said, “Until it’s appropriate.” He added that once the Iran conflict ends, he expects gasoline and oil prices to “drop like a rock” without the need for a prolonged tax holiday. Energy Secretary Chris Wright had previewed the proposal over the weekend, telling reporters that the Trump administration was “open to all ideas” to cut the cost of fuel for American consumers.
The federal gas tax currently stands at 18.4 cents per gallon for gasoline and 24.4 cents per gallon for diesel. Eliminating it from the retail price would bring the national average from approximately $4.52 to around $4.34 per gallon — meaningful in dollar terms for high-mileage drivers, but modest relative to the approximately $2-per-gallon increase consumers have absorbed since the war began. The tax, along with related fees, generates more than $23 billion annually for the Highway Trust Fund, the primary federal mechanism for financing road construction, bridge maintenance, and public transportation infrastructure.
Republican lawmakers moved swiftly to translate Trump’s remarks into legislation. Missouri Senator Josh Hawley introduced a bill Monday that would suspend the gas tax for 90 days after enactment, with a provision allowing Trump to extend the suspension for an additional 90 days if he determined economic conditions warranted it. Florida Representative Anna Paulina Luna announced on X that she would introduce companion legislation in the House. The proposals share structural similarities with a bill Democrats introduced in March — sponsored by Senators Richard Blumenthal of Connecticut and Mark Kelly of Arizona, and Representative Chris Pappas of New Hampshire — that would suspend the tax through October 1, though that measure stalled without Republican support.
Senate Majority Leader John Thune has expressed lukewarm interest, telling reporters he is “willing to hear out” colleagues but has not been keen on the concept. The divergence between presidential enthusiasm and Senate leadership skepticism reflects a recurring tension within the Republican majority between responding to voter pressure on prices and managing the longer-term fiscal and infrastructure implications of revenue reductions. Congress must appropriate replacement funding for the Highway Trust Fund if the gas tax is suspended, or face a shortfall that could slow or halt road and bridge projects nationwide.
Trump has simultaneously deployed other tools to address energy prices. The administration has released 172 million barrels of oil from the Strategic Petroleum Reserve in an effort to stabilize supply and moderate prices. It has also eased ethanol pollution rules to stretch domestic fuel supplies and lifted restrictions on foreign ships transporting fuel between U.S. ports. Despite these measures, prices at the pump have continued to climb, reinforcing the political urgency behind the gas tax proposal.
Why It Matters
For ordinary Americans, the cost of gasoline is one of the most viscerally felt indicators of economic conditions. Unlike abstract measures such as the consumer price index or GDP growth, the price displayed at the pump changes daily and is impossible to ignore. When gas prices rise sharply, approval ratings fall — a pattern documented in presidential polling for decades. With Trump’s approval on the economy measured at just 25 percent favorable and 69 percent unfavorable in a recent Economist/YouGov poll, the political pressure to demonstrate tangible relief is acute ahead of the 2026 midterms.
The gas tax proposal also carries constitutional and governance significance. The executive branch does not have unilateral authority to suspend tax statutes — that power rests squarely with Congress under Article I of the Constitution. Trump’s framing of the proposal as something he would “do” until it’s “appropriate” glosses over that fundamental legal constraint. Whether Congress acts, how quickly, and with what fiscal safeguards will be a test of the legislature’s capacity to function as an independent co-equal branch rather than as a ratifying body for executive preferences.
From a policy standpoint, the debate over the gas tax reflects a broader tension between short-term economic relief and long-term fiscal and infrastructure health. The Highway Trust Fund is already under structural pressure from declining fuel tax revenues as Americans drive more fuel-efficient vehicles and adopt electric cars. A major temporary reduction in that revenue stream could disrupt planned infrastructure projects across the country, potentially costing jobs and delaying repairs to roads and bridges that affect commerce and safety.
Economic and Global Context
The fundamental driver of high gas prices is not the federal tax — it is the Strait of Hormuz blockade, which has taken a substantial portion of global oil supply offline. The U.S. Department of Energy projects oil will remain above $100 per barrel in the coming weeks, with some analysts warning that the national average could eventually reach $5 per gallon. Gas prices above $6 per gallon were already reported in parts of California in late April. Suspending the 18.4-cent federal tax addresses roughly 4 percent of the price increase consumers have experienced since the war began — a noticeable but limited intervention.
The Bipartisan Policy Center has calculated that a five-month suspension of the gas tax would reduce Highway Trust Fund revenue by $17 billion — roughly 46 percent of its annual total. The fund currently supports approximately $60 billion in annual road, bridge, and transit spending. If Congress does not backfill that revenue with general fund transfers, the impact on planned infrastructure projects could be significant, particularly in states that depend heavily on federal highway matching funds to move forward with construction programs.
Globally, the gas price surge is part of a broader energy price shock affecting all oil-importing economies. Europe and Asia are facing similar pressures, with energy costs driving inflation higher across major economies. Several central banks have signaled caution about rate cuts in this environment, and international energy agencies have called for diplomatic resolution of the Hormuz blockade as the only durable solution to the supply disruption.
Implications
For Congress, the gas tax proposal creates a politically charged test vote that cuts across traditional partisan lines. Democrats who sponsored suspension legislation in March face pressure to support Trump’s version or appear inconsistent. Republicans who worry about infrastructure funding face pressure from their own president to move quickly. The bipartisan overlap on this issue creates a realistic path to legislative action — but the specifics of duration, fiscal offset, and presidential extension authority will determine whether a deal can be struck before the summer driving season peaks.
For the broader economy, the most consequential variable remains the Iran war itself. Modest tax relief at the pump will not substitute for the market impact of a durable peace agreement or ceasefire that reopens the Strait of Hormuz. As long as the blockade remains in place, energy prices will remain elevated regardless of what Congress does with the gas tax, and the inflationary effect will continue to weigh on consumer spending and Federal Reserve monetary policy.
For voters heading into November, the gas tax debate will serve as a real-time accountability measure. If Congress passes relief and prices remain high, voters will know the measure was insufficient. If the administration fails to move legislation, the proposal will be remembered as a talking point rather than a policy achievement.
Sources
“Trump wants to pause the federal gas tax. Here’s what that means.”
