Drivers hit nationwide $4 gas milestone as summer surge points toward $5

Drivers hit nationwide $4 gas milestone as summer surge points toward $5

American drivers have crossed a grim threshold just as summer travel ramps up, with average gas prices topping $4 a gallon in all 50 states. According to GasBuddy and AAA, as reported by Fortune, regular gasoline has now cleared $4 per gallon nationwide, with the U.S. average reaching $4.56 on May 20. That's up sharply from $3.14 a year earlier. Georgia and Mississippi were the least expensive states at $4.01, while California was the highest at…