The core assertion — that a Washington Post poll found 61% of Americans think Trump's war in Iran was a mistake — is fully and directly confirmed by multiple Tier 1 and Tier 3 primary sources, including Ipsos (the polling institution itself), ABC News (co-sponsor), and the Washington Post (co-sponsor), all publishing on May 1, 2026, the same day as the broadcast. The 61% figure and the 'mistake' framing are precisely accurate and match the poll's headline finding verbatim. Psaki's attribution as 'a Washington Post poll' is a widely used shorthand; the full attribution is Washington Post-ABC News-Ipsos, but this imprecision is immaterial — it does not alter the statistic, its meaning, or a reasonable viewer's understanding of which poll is being cited. The poll methodology is sound and fully documented: 2,560 U.S. adults surveyed April 24–28 via the Ipsos KnowledgePanel probability panel with a ±2 point margin of error. No corrections, retractions, or challenge to the figure have been identified. Minimum source requirements for TRUE are satisfied: multiple Tier 1–3 sources with INDEPENDENT source independence confirm the core assertion with no material omissions or inaccuracies that would change a reasonable viewer's interpretation.