EXCLUSIVE — High gas prices are causing more than half of voters to consider not supporting Republicans, new polling shows, in a warning sign that the Iran war’s consequences could hamper the GOP’s efforts to keep control of the House and Senate.Results from a recent Overton Insights survey, shared exclusively with the Washington Examiner, showed 57% of respondents said that due to high gas prices, they were less likely to support the Republican Party. Just 12% said they were more likely to support the GOP, and 31% said high gas prices made no difference.

More worrying for the GOP is that 64% of independent voters said higher gas prices made them less likely to support the Republican Party, while 36% said it made no difference.

The poll found that high gas prices are even affecting support among registered Republicans. According to the survey, 23% of self-identified Republicans said they were less likely to support their party over higher gas prices, while 83% of Democrats said the same.

Memorial Day gas prices reached a four-year high at $4.56, according to AAA. The holiday weekend is usually seen as the start of the summer travel season. As of Tuesday, the national average is at $4.49, AAA reports.