Nearly two-thirds of American Jews surveyed believe the war against Iran has been unsuccessful, even as a majority say U.S. military action against Tehran did not go far enough, according to a new survey from the Jewish People Policy Institute.

JPPI’s August 2026 Voice of the Jewish People Index found that 64% of U.S. respondents viewed the campaign against Iran as a failure, while 33% considered it successful and 4% said they did not know.

The numbers represent a significant shift from earlier this year. In March, 66% viewed the campaign as successful. That figure fell to 56% in April, 48% in May, 28% in June, 36% in July and 33% in August.

The results showed a sharp political divide. Among respondents identifying as strongly liberal, 89% considered the campaign a failure, while 80% of strong conservatives viewed it as successful.

The divide was similarly stark along presidential voting lines. Among Trump voters, 73% viewed the campaign as successful, compared with 84% of Harris voters who considered it a failure.

Despite the overall negative assessment of the campaign’s success, 55% of connected U.S. Jews said American military action against Iran did not go far enough. Thirty percent said the U.S. went too far, while just 3% said the level of military action was about right.

Among Trump voters, 94% said U.S. military action did not go far enough. Meanwhile, 45% of Harris voters said it went too far.

The survey also showed declining approval of President Trump’s handling of Iran. Twenty-six percent rated Trump’s leadership on Iran positively in August, down from 46% in March, while 67% gave him a negative rating.

Prime Minister Benjamin Netanyahu also saw his ratings decline. Thirty-eight percent rated Netanyahu’s leadership on Iran positively, down from 53% in March, while 52% rated it negatively.

JPPI conducted the survey from August 15 through August 20 among 804 respondents in the United States. The organization noted that its sample primarily reflects “connected” Jews with relatively strong ties to the Jewish community, Israel or Jewish identity and is not representative of all American Jews.

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