Three weeks ago, the national average price of regular-grade gasoline was $4.17 a gallon.
It's now down to $4.02. Still, given that the last time gas prices were this high was during George W.
Bush's presidency, the price of petrol is inflicting serious hardship.
To tackle the rising cost of gasoline, the Biden administration approved an emergency fuel waiver last week.
This exception permits E15 gasoline (fuel containing 15% ethanol) to be marketed in the United States.
The waiver goes into effect this summer as part of the president's aim to make fuel more affordable.