Trump's Gas Tax Suspension Push Faces Steep Political and Budget Hurdles

President Trump’s endorsement of suspending federal gas taxes has thrust the idea into the political spotlight, but its path to reality remains fraught with challenges. While some lawmakers on both sides of the aisle have signaled support, significant hurdles—including budgetary concerns and congressional gridlock—could prevent the proposal from advancing.

Key Details of the Federal Gas Tax

The federal gas tax stands at 18.3 cents per gallon for gasoline and 24.3 cents per gallon for diesel, with an additional 0.1 cent fee allocated to address leaking underground storage tanks.

Congressional Response: Mixed Signals and Concerns

Following Trump’s comments to CBS News, several dynamics have come into focus:

📜 Capitol Hill Dynamics

• Republican Support: Sen. Josh Hawley (R-Mo.) quickly pledged to introduce legislation in response to Trump’s proposal.
• Senate Majority Leader’s Stance: Senate Majority Leader John Thune (R-S.D.) struck a cautious tone, stating,

  "I've not in the past obviously been a fan of that idea. But you know I've got some colleagues out there who think it's a good idea and so we'll hear them out."

• Revenue Concerns: Thune warned that suspending the gas tax could jeopardize funding for the Highway Trust Fund, which supports roads, bridges, and transit. He added that the best solution for gas prices would be reopening the Strait of Hormuz.

🗳️ 2028 Election Implications

Several potential presidential candidates have also endorsed a temporary suspension of the gas tax:

• Sen. Mark Kelly (D-Ariz.)
• Sen. Josh Hawley (R-Mo.)
• Kentucky Gov. Andy Beshear (D)

🤷 Democratic Skepticism

Senate Minority Leader Chuck Schumer (D-N.Y.) criticized the proposal, arguing that the relief it would provide is insufficient compared to the rise in gas prices since the start of the Russia-Ukraine war. In a floor speech, he stated:

"[L]et's not pretend 18-cents of gas tax relief per gallon makes up for the damage Trump created with this war. Eighteen cents isn't a dollar-fifty—which is how much the price of gas has gone up since the war started. The best way to lower costs is to end this illegal war."

Aides to House Speaker Mike Johnson (R-La.) and House Minority Leader Hakeem Jeffries (D-N.Y.) declined to comment on the proposal.

💵 The Budgetary Challenge: A Costly Proposal

One of the primary obstacles to suspending the gas tax is its significant financial impact. Historically, proposals to waive the tax have stalled due to concerns over revenue loss for the Highway Trust Fund, even when gas prices surge.

The potential cost varies depending on the duration and structure of the suspension. For example:

• Sen. Mark Kelly’s plan proposes diverting other funds to offset losses to the Highway Trust Fund.
• A hypothetical gas tax waiver from May 15 to November 30 would cost nearly $14 billion, according to research firm ClearView Energy Partners.
• The total cost could rise substantially if other fuels are included in the suspension.

The research firm noted in a client note that while the high costs typically deter support, "in a mid-term election year where both parties are in no-holds barred pursuit of Congressional control, we cannot wholly rule [out] the possibility."

Bottom Line: A Long Shot with Political Incentives

Despite bipartisan interest, the proposal faces steep odds due to budgetary constraints and congressional resistance. However, the political climate—particularly in an election year—could create unexpected momentum for the idea.