Gas prices could shape the midterms. See the US states where prices have risen the most.

Source: Business Insider

In 42 states, gas prices are more than $1 higher today than they were a year ago. Charles-McClintock Wilson/NurPhoto via Getty ImagesRising gas prices since the beginning of the Iran War are a key issue during the 2026 midterms. Since last year, regular gas prices have increased by 40%, and diesel prices by 71% across states.