Voters favor the nuclear threat argument most, with intelligence warnings second. After hearing the case, support for U.S. action shifts from a 12.6-point deficit to a 4.6-point lead.
AMERICA’S NEW MAJORITY PROJECT
SEP 18, 2026
Key Takeaways
- Security arguments convince majorities. 73% find the armed-groups argument convincing, 71% the intelligence warning, 71% the Strait of Hormuz, and 64% the nuclear threat.
- The intelligence warning reaches beyond the base. 73% of independents and 57% of Democrats find it convincing.
- Oil and gas carries a risk. Among the 26% who say an argument made them less supportive, 38% cite oil and gas, more than any other message.
- Voters take Iran at its word. 55% say its leaders mean “Death to America.
- Support moves after the full case. Opinion shifts from 40% support and 52% oppose to 48% and 43%, a 17-point net shift that can’t be credited to any single argument.