Record gas prices squeeze Americans as summer travel season ends, midterms loom and Iran war wages on

As the summer travel season came to a close, Americans faced the most expensive Labor Day at the pump on record, extending the squeeze on household budgets for millions who hit the road over the holiday weekend.

AAA estimated that nearly 40 million Americans would drive over the holiday, paying unprecedented prices for gasoline.

The national average for regular gasoline reached $4.15 per gallon on Tuesday, up about 5 cents from the previous week and nearly 96 cents higher than a year earlier. The price shattered the previous Labor Day record of $3.82, set in 2012, and marked the first time the national average topped $4 during the holiday weekend.

The spike came despite a seasonal trend that typically brings some relief after Labor Day, when summer travel winds down and gasoline demand eases. This year, however, elevated crude oil prices tied to the offset that typical decline.

Fighting in the Middle East raised concerns about disruptions to oil shipments through the , a narrow waterway between Iran and Oman that carries roughly one-fifth of the world's crude oil. Those concerns kept crude oil prices near $90 a barrel, limiting the seasonal decline in gas prices motorists typically see after Labor Day.

The record prices pose a political challenge for President , who campaigned on affordability and pledged to bring gasoline below $2 per gallon. His push to expand domestic oil and gas production has made energy costs a key test of his economic agenda, particularly as the Iran conflict drives crude prices higher.

With Americans still facing elevated everyday costs, record Labor Day gas prices could contribute to making affordability a major issue heading into the midterm elections in November.

While the national average reached $4.14 per gallon, prices varied significantly by state.

America's west was hit hardest. California had the nation's highest average gas prices at $5.78 per gallon, followed by Washington at $5.47, Hawaii at $5.41, Oregon at $4.98, Alaska at $4.96, Nevada at $4.91, Idaho at $4.62, Arizona at $4.52, Utah at $4.42 and Montana at $4.38.

At the other end of the spectrum, Indiana had the nation's cheapest gas at $3.44 per gallon. It was followed by Texas at $3.69, Oklahoma and Mississippi at $3.71, Louisiana at $3.75, Arkansas at $3.77, South Carolina and Kansas at $3.78, Alabama at $3.79 and Wisconsin at $3.80.

TRUMP JUST BROKERED A DEAL WITH THE COUNTRY SITTING ATOP THE WORLDS LARGEST OIL RESERVES

With the summer driving season now over, drivers would typically expect prices to decline as fuel demand eases. But any relief at the pump will depend largely on whether crude oil prices retreat from recent highs or remain elevated by continued tensions in the Middle East.

The White House did not immediately respond to Fox News Digitals request for comment.