A cluster of major polls released in the weeks since Operation Epic Fury began in late February tell a consistent story: the war with Iran is broadly unpopular with the American public but firmly supported within the Republican base. An NPR/PBS/Marist poll found that 56 percent of Americans oppose U.S. military action in Iran, while only 33 percent support it. An Emerson College poll put opposition at 47 percent and support at 40 percent. A Quinnipiac University survey found that 74 percent of voters oppose sending ground troops into Iran — a figure that crosses partisan lines, with even a substantial minority of Republicans opposed to any ground deployment.

Trump's approval rating on Iran specifically stands at 36 percent approve and 54 percent disapprove, according to the Marist poll. His approval among independent voters has fallen to just 28 percent in the latest Quinnipiac survey. CNN published an analysis on March 20 noting that while Trump is losing independents, his MAGA base is not moving: approximately 84 percent of Republicans support the Iran war, with only 2 percent opposed in one survey focused on MAGA voters.

The anti-war strain within MAGA has been led by media figures including Tucker Carlson, Megyn Kelly, and Candace Owens, who have framed the conflict as a war for Israel's benefit rather than America's. But polling data suggests those voices are not moving voters. A Newsbusters analysis confirmed that when GOP voters were asked who they trusted more on Iran — Trump or Tucker Carlson and Megyn Kelly — the result was 83 to 6 in Trump's favor. Fox News published an opinion column by David Marcus arguing that the "MAGA civil war" over Iran is a myth.

The partisan divide is sharp. A YouGov/Economist poll found that 86 percent of Democrats and 61 percent of independents oppose U.S. military action in Iran. A new poll from the Institute for Middle East Understanding found that a majority of Americans believe the war primarily benefits Israel rather than the United States. The war's unpopularity with independents raises questions about 2026 midterm implications, with Chatham House noting that Trump's brand as the "president of peace" faces a significant test.