A growing share of American evangelicals are breaking with President Donald Trump on two of the most contentious issues of his second term — the war in Iran and an aggressive immigration enforcement campaign — raising new questions about the stability of one of the Republican Party’s most reliable voting blocs ahead of the 2026 midterm elections.
New polling suggests that while evangelicals remain broadly more supportive of Trump than the general public, many are increasingly uncomfortable with policies they believe conflict with Christian teachings on peace, compassion and the treatment of immigrants. The shift could have significant implications for Republicans defending narrow congressional majorities this November.
Evangelicals split over Iran war and immigration enforcement
According to a recent Reuters/Ipsos survey, 54% of evangelicals said Trump’s use of military force in Iran is not aligned with their understanding of Christianity, while 51% said the administration’s immigration policies similarly conflict with Christian values. The findings reveal a striking divide within a community that played a critical role in Trump’s 2024 election victory.
The survey also found Trump’s approval rating among evangelicals has slipped to 52%, down from 61% last year, even as it remains significantly higher than his overall national approval rating. Rising fuel costs linked to the prolonged Iran conflict and concerns over the humanitarian impact of immigration raids appear to be contributing factors.
For many evangelical voters, the debate is no longer simply political. It has become a question of whether government policies reflect core biblical principles.
Some evangelical supporters continue to defend the administration’s actions, arguing that support for Israel and a strong national security posture are consistent with their faith. Others contend that the escalating conflict and mass deportation efforts undermine Christian teachings centered on mercy, reconciliation and care for vulnerable populations.
Long-running tensions inside the evangelical movement
The current debate did not emerge overnight. Questions about how evangelicals should approach immigration have been simmering for years.
In February 2026, The Christian Century reported that evangelical leaders remained deeply divided over immigration policy, with some emphasizing border security while others urged churches to prioritize welcoming immigrants and preserving families. The debate highlighted growing friction between political loyalties and religious convictions.
Likewise, in April 2026, a Reuters analysis examined how some evangelical leaders embraced religious language to justify the administration’s military campaign against Iran, framing the conflict as a moral struggle. Yet even then, signs of resistance were emerging among Christians concerned about the human and economic costs of another extended war.
These earlier disputes now appear to be converging into a broader reassessment of Trump’s agenda among portions of the evangelical electorate.
Midterm implications could be significant
Republican strategists have long viewed evangelicals as one of the party’s most dependable constituencies. However, any meaningful decline in enthusiasm could complicate efforts to maintain control of Congress.
The challenge comes at a sensitive moment. The administration has doubled down on immigration enforcement while lawmakers recently approved major funding increases for border security and deportation operations. At the same time, the Iran conflict continues to generate political and economic pressures at home.
Some Republican lawmakers have already begun distancing themselves from aspects of the Iran strategy as public concern grows over casualties, military commitments and rising costs.
Political analysts note that evangelical voters are far from monolithic. While many remain firmly supportive of Trump, younger evangelicals and church leaders focused on humanitarian issues have shown increasing willingness to challenge policies they believe contradict their faith.
Evangelicals remain influential despite growing disagreements
Despite the emerging backlash, evangelicals continue to represent one of the most influential forces in American politics. Trump’s previous achievements, including the appointment of conservative Supreme Court justices and policies expanding religious expression in public life, still resonate strongly with many believers.
Yet the latest polling suggests that support can no longer be taken for granted. As the Iran war drags on and immigration enforcement intensifies, more evangelicals appear willing to scrutinize policies through a religious lens rather than a purely partisan one.
Whether that reassessment translates into lower turnout, protest votes or broader electoral consequences remains uncertain. What is clear is that one of America’s most politically powerful faith communities is experiencing a period of internal conflict at a moment when every vote could matter in the battle for Congress.
