A bipartisan effort in Congress to suspend the federal gasoline tax is growing as U.S. fuel prices hit their highest since 2022, facing opposition from engineering and transportation groups warning it could further strain federal infrastructure funding ahead of surface transportation negotiations. AAA said May 7 the national average price for a gallon of regular gasoline had climbed to about $4.55 —roughly $1.40 higher than a year earlier—after rising 25 cents for a second consecutive week. The proposals follow President Donald Trump’s public support this week for temporarily suspending the federal gas tax as motorists face sharply higher fuel costs. Sen. Josh Hawley, R-Mo., introduced legislation May 11 that would suspend federal gasoline and diesel taxes for 90 days, with the president authorized to extend the suspension for another 90 days. Hawley said the proposal would provide “immediate relief” to consumers facing higher fuel costs.…