Trump and Pope Leo XIV at odds over Iran amid a widening faith-politics clash
Pope Leo XIV has brought a sharply personal tone to the religious debate around the Iran war, publicly criticizing President Donald Trump as a fragile ceasefire took hold. In Vatican messaging and subsequent comments, Leo drew a direct line between Trump’s actions and the religious arguments used in the U.S. political debate over whether God backs the war.
The episode stands out to U.S. and Catholic scholars because it targets Trump by name at a moment when the Vatican typically speaks more broadly about war, migration, and social order. It also comes after senior U.S. officials and prominent Christian leaders used faith language to frame support for the military campaign, while the pope used scripture to reject prayers tied to warfare.
The sequence of public remarks sharpened the confrontation. Leo’s Palm Sunday message included a direct rejection of prayers offered by those who wage war, saying God “does not listen to the prayers of those who wage war, but rejects them,” and invoking an Old Testament passage from Isaiah that “even though you make many prayers, I will not listen — your hands are full of blood.”
In the U.S. political debate, Trump and allied religious leaders have made similar but not identical claims about divine approval. Defense Secretary Pete Hegseth urged Americans to pray for victory “in the name of Jesus Christ.” When Trump was asked whether he believed God approved of the war, he said, “I do, because God is good — because God is good and God wants to see people taken care of.”
Other evangelical voices backed Trump’s stance in comparable terms. Franklin Graham, son of the late evangelist Billy Graham, said Trump was someone God “raised … up for such a time as this,” and he prayed for Iranians to “be set free from these Islamic lunatics.” Leo, in contrast, later described Trump’s posture toward the war as crossing a moral line rooted in scripture and church teaching, and after Trump’s remarks about potential strikes, he said the pope’s objection applied directly to Trump’s stated threat.
After Trump warned of mass strikes against Iranian power plants and infrastructure, writing on social media that “an entire civilization will die tonight,” Leo described it as a “threat against the entire people of Iran” and called that language “truly unacceptable.” Earlier, Leo also declared that Trump’s belligerence was “truly unacceptable,” putting the criticism in the foreground as the ceasefire environment shifted.
Even so, Catholic experts said the pope’s objection aligns with established church teaching about long-term international norms and the ethics of war, rather than reacting to current U.S. election-season politics. William Barbieri, a Catholic University professor, said the church has spent “the last five centuries” working on a project of developing “strong international norms,” naming the Geneva Conventions as an example, and argued the approach is rooted in “Scripture and theology and philosophy.”
Fordham theology professor Natalia Imperatori-Lee described Leo’s critique as unusually specific to the American president, saying it differs from other popes’ tendency to address political systems without mentioning Trump directly. She compared Leo’s approach with Pope Francis, who she said urged U.S. bishops to defend migrants without specifically naming Trump or his deportation agenda. Imperatori-Lee said Leo’s opposition is also distinctive in how readily it translates to U.S. listeners, describing him as a native English speaker whose tone and “inflection and meaning” leave “no question” about what he intends.
Other scholars linked the personal dynamic of Leo and Trump to broader patterns of American polarization that both men, as observers of U.S. public life, have lived through. Steven Millies, a professor at Chicago’s Catholic Theological Union, said the pope and Trump “have … in common” having experienced “post-war polarization,” while arguing Leo is not necessarily seeking a rivalry. Millies added that Leo appears comfortable with American culture and conversation in ways that could increase how audiences interpret his intervention, noting Leo subscribes to The New York Times, plays “Wordle,” keeps up with U.S. sports, and talks regularly with his brothers, including one who is described as an avowed Trump supporter.
Still, the clash carries risks for both the Vatican and the U.S. president, according to the experts. Millies said the pope or U.S. bishops may have limited influence on individual Catholic voters when “partisan preferences always trump the religious commitments,” describing a “disconnect” between church leaders and many parishioners who look to other sources, including politicians, when shaping their faith and political views. He argued that the American political ecosystem now treats widely recognized Catholic figures as icons of winning arguments, rather than as emissaries of religious doctrine.
Relations between Washington and the Vatican have also been strained at other points. The AP report said a separate episode involving an allegedly contentious meeting between Pentagon and Catholic Church officials sent shockwaves, and described rebuttals from both sides. The Vatican rejected the account as not corresponding “to the truth in any way,” and the U.S. Embassy to the Holy See wrote on social media that “deliberate misrepresentation of these routine meetings sows unfounded division and misunderstanding.”
In the current Iran war moment, Leo’s direct criticism has landed in the middle of U.S. Christian identity—echoing arguments about scripture and war ethics while challenging how Trump’s team and evangelical leaders frame divine endorsement. The White House did not respond to a request for comment, and Trump has not publicly answered Leo’s latest criticisms.