Few expect U.S.-Iran preliminary agreement to bring lasting peace
Washington, D.C., June 23, 2026 – A new Reuters/Ipsos poll conducted June 18-22 finds that 63% of Americans think it is unlikely that the preliminary agreement between the U.S. and Iran will lead to lasting peace between the two countries. Just 18% say the agreement will likely lead to lasting peace.
Asked to consider both the costs and benefits, 52% of Americans say it has not been worth it for the U.S. to take military action in Iran; views are similar to those measured in May Reuters/Ipsos polling conducted before the agreement. A smaller share (24%) say U.S. military action has been worth it, while 22% are unsure.
Americans are more likely to say that, compared with before the conflict, the U.S. is now in a weaker position with Iran rather than a stronger one (35% vs. 23%); 16% say the U.S. position is about the same and 23% are not sure. Views of Iran's position with the U.S. are split: 28% say Iran is in a stronger position, while 27% say it is in a weaker position; 17% say its position is about the same and 26% are unsure.
More broadly, 77% say they have heard at least a little about the preliminary agreement between the U.S. and Iran to end the military conflict between the two countries, though just 21% have heard “a lot” about the agreement.
The poll also covers other topics of national debate, including the issue of birthright citizenship, which the U.S. Supreme Court is expected to rule on in the coming weeks. On balance, more Americans oppose ending birthright citizenship than support ending the practice (55% vs. 41%). Views break along partisan lines, with 61% of Republicans in favor of ending birthright citizenship, compared with 72% of Democrats who are opposed.
See the full topline for more on views on President Donald Trump’s handling of the presidency, the overall direction of the country, and views of major political figures.
About the Study
This Reuters/Ipsos poll was conducted June 18-22, 2026, by Ipsos using the probability-based KnowledgePanel®. This poll is based on a nationally representative probability sample of 1,262 general population adults aged 18 or older.
The study was conducted in English. The data were weighted to adjust for gender by age, race and ethnicity, census region, metropolitan status, education, household income, 2024 vote choice and political party identification. Political party identification benchmarks are from the 2025 NPORS annual survey, with a midyear adjustment estimated across aggregated KnowledgePanel surveys accounting for changes in panelists’ party identification over time. The demographic benchmarks came from the 2025 March supplement of the U.S. Census Bureau’s Current Population Survey (CPS).
- Gender (Male, Female) by Age (18–29, 30–44, 45-59 and 60+)
- Race/Hispanic Ethnicity (White Non-Hispanic, Black Non-Hispanic, Other, Non-Hispanic, Hispanic, 2+ Races, Non-Hispanic)
- Education (Less than High School, High School, Some College, Bachelor’s degree, Master’s degree or higher)
- Census Region (Northeast, Midwest, South, West)
- Metropolitan status (Metro, non-Metro)
- Household Income (Under $25,000, $25,000-$49,999, $50,000-$74,999, $75,000-$99,999, $100,000-$149,999, $150,000+)
- 2024 Vote Choice (Trump, Harris, Another candidate, Did not vote)
- Political Party ID (Democrat, Lean Democrat, Republican, Lean Republican, Independent/Something else)
The margin of sampling error is plus or minus 2.8 percentage points at the 95% confidence level, for results based on the entire sample of adults. The margin of sampling error takes into account the design effect, which was 1.04. The margin of sampling error is higher and varies for results based on sub-samples. In our reporting of the findings, percentage points are rounded off to the nearest whole number. As a result, percentages in a given table column may total slightly higher or lower than 100%. In questions that permit multiple responses, columns may total substantially more than 100%, depending on the number of different responses offered by each respondent.
For more information on this news release, please contact:
Alec Tyson
Senior Vice President, US
Public Affairs
[email protected]
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