U.S. Gas Prices Reach Four-Year Peak

The average price of regular gasoline in the United States reached $4.23 per gallon. This marks the highest price at the pump in nearly four years.

According to NBC's Christine Romans, ongoing difficulties in negotiations between the United States and Iran contributed to the price increase. Discussions aimed at resolving the conflict remain at an impasse.

The timing of the price surge coincides with the approach of the summer travel season. Analysts believe higher gas prices could impact travel plans.