Support for the conflict has remained below 40% since the US and Israel launched strikes on Iran on February 28. Falling Republican support, rising gas prices, and fears of a long conflict drive a decline in backing for the Iran war. Key points and original sources are listed below.

• Support for the conflict has remained below 40% since the US and Israel launched strikes on Iran on February 28.S1

• Falling Republican support, rising gas prices, and fears of a long conflict drive a decline in backing for the Iran war.S2