Vice President JD Vance greeted Pope Leo XIV's blessing of the US-Iran deal with a two-word answer at the White House on Thursday: "Praise Jesus." The quip, delivered at a press briefing on June 18, 2026, marked the latest turn in a volatile relationship between the Trump administration, the Vatican, and the Israeli government over a 14-point memorandum of understanding that the pope said would be signed the following day.

Vance, who converted to Roman Catholicism in 2019, did not stop at the joke. He went further, endorsing the pope's assessment of the deal and then turning to deliver a pointed message to Israeli cabinet ministers who have publicly attacked it.

The exchange captures a rare alignment between the Trump White House and the Vatican on a foreign-policy matter that has divided Washington's closest allies, and a vice president willing to tell those allies, in plain language, to reconsider their approach.

What Vance said, and why it matters

Asked at the briefing about Pope Leo XIV expressing approval for the MOU, Vance told reporters:

"My response to that is, 'Praise Jesus!' I'm glad that the pope has positive things to say about our MOU. I think that the pope is fundamentally accurate, and it's going to be good for the entire world, but we got to keep working at it to make sure that the Iranians honor the commitments that they've made."

That last clause is worth noting. Vance did not offer blind optimism. He acknowledged the deal depends on Iranian compliance, a caveat that separates the administration's position from the pope's more sweeping language about "dialogue and cooperation among peoples."

The day before, during his weekly General Audience at the Vatican, the U.S.-born pontiff had welcomed the agreement publicly. Pope Leo XIV stated, as reported by Vatican News:

"I welcome with satisfaction the reaching of an agreement between the Islamic Republic of Iran and the United States of America, which will be signed on Friday, as an encouraging result of patient work of dialogue and negotiation."

He added that he hoped the agreement would "help strengthen mutual trust, security and stability in the Middle East, promoting paths of dialogue and cooperation among peoples." The pope also thanked unnamed third-party countries that had aided in the negotiations.

Vance's sharp words for Israeli critics

The vice president's most consequential remarks Thursday were not about the pope. They were about Israel.

Israeli Finance Minister Bezalel Smotrich and National Security Minister Itamar Ben-Gvir have both criticized the US-Iran deal. Vance pushed back, hard, during the same briefing.

"If I was in the cabinet of the Israeli government, I might not be attacking the only powerful ally that I have anywhere left in the entire world."

That is not diplomatic boilerplate. It is a direct warning to officials inside a government that depends on American support.

In a New York Times interview released the same day, Vance went further, addressing Israeli officials directly:

"What is your exact proposal? You're a country of 9 million people. You can't just kill your way out of solving every single national security problem that you have."

Vance drew a distinction between the Israeli cabinet's hardliners and Prime Minister Benjamin Netanyahu, whom he described as having been "measured in his response to the interim peace deal." The vice president also advised Israeli officials to remember the unique support President Trump and the United States have given them.

Ben-Gvir fired back. In a social media post, the Israeli national security minister claimed the United States ought "to deal with the Nazis of the 21st century, just as the United States dealt with the Nazis of the 20th century." The full text of his response was not reproduced in reporting, but the comparison speaks for itself.

A complicated history between the White House and the Vatican

The alignment between Vance and Pope Leo XIV on the Iran deal did not come out of nowhere, but it did not come easily, either. The relationship between the Trump administration and the first American pope has lurched between open hostility and cautious respect over the past several months.

Trump previously called Pope Leo XIV "WEAK on Crime" and "terrible for Foreign Policy" on Truth Social. A now-deleted post depicted Trump as Jesus Christ in an AI-generated image. Vance, in an interview with Fox News, dismissed the image as a misunderstood "joke" and told the Vatican to "stick to matters of morality" and let the president handle American public policy.

That earlier posture, a Catholic vice president publicly drawing a line against the pope, makes Thursday's "Praise Jesus" moment all the more striking.

In an interview with Glenn Beck earlier in the week, Vance offered a more measured take on the pope's role. He argued that media coverage exaggerates the conflict between the Vatican and the White House.

"Oftentimes, I find that when the media reports on him as an antagonist of Donald Trump, or somebody who just rejects wholesale everything that Donald Trump says, and then I'll read what he actually says. And I realize the pope does sometimes have disagreements, but he's actually much more nuanced, and much more subtle, than what the media gives him credit for."

That framing, the media inflating disagreements for drama, is consistent with what Vance told the Washington Examiner in April, when he expressed gratitude to the pope for de-escalating tensions: "While the media narrative constantly gins up conflict, and yes, real disagreements have happened and will happen, the reality is often much more complicated."

The New York Post reported that Vance praised Leo for clarifying he had no interest in debating Trump, framing their relationship as complementary. "Pope Leo preaches the gospel, as he should, and that will inevitably mean he offers his opinions on the moral issues of the day," Vance said at the time. "He will be in our prayers, and I hope that we'll be in his."

The pope's record on the Iran conflict

Pope Leo XIV has been outspoken about the U.S.-Israeli conflict in Iran since it began on February 28. In March, he described the conflict as a "scandal to the whole human family." During a homily in Rome that same month, the pope declared that Jesus Christ is the "King of Peace, who rejects war, whom no one can use to justify war."

Those statements put the Vatican squarely at odds with the administration's military posture at the time. But the MOU appears to have created a point of convergence. The pope's endorsement gives the deal a moral imprimatur that the White House is happy to accept, and Vance's response suggests the administration sees strategic value in the alignment.

Vance, whose faith memoir "Communion" has drawn attention to his spiritual journey, has navigated the Vatican relationship with more care than his public comments sometimes suggest. He has praised the pope's forthcoming AI encyclical as a "very, very important document," even while telling the Vatican to stay out of American policy decisions on other fronts.

What the deal contains, and what remains unclear

The MOU itself is described as a 14-point agreement between the United States and the Islamic Republic of Iran. CBS News published the text, but the specific commitments Iran made under the deal are not detailed in available reporting. Vance's insistence that the administration must "make sure that the Iranians honor the commitments that they've made" suggests the White House views compliance as an open question, not a settled matter.

That is the right instinct. Iran's track record on honoring international agreements does not inspire confidence. The deal's value will be measured not by papal approval or press-briefing quips but by whether Tehran follows through.

The Israeli government's reaction adds another layer of uncertainty. Netanyahu may be "measured," but his cabinet is not. Smotrich and Ben-Gvir represent a coalition faction that views any negotiated settlement with Iran as capitulation. Vance's willingness to confront them publicly, telling a country of 9 million people it cannot "kill your way out of solving every single national security problem", is a remarkable statement from an administration that has been Israel's most reliable friend.

It is also, whether critics like it or not, a statement grounded in strategic reality. The vice president has not hesitated to challenge the Vatican when he believed it overstepped. He is applying the same standard to Israeli cabinet ministers who, in his view, are biting the hand that defends them.

The bigger picture

Nearly four months into the conflict, the administration has produced a diplomatic framework and secured the pope's endorsement, two outcomes that seemed unlikely in March. Whether the MOU holds depends on Iranian behavior, Israeli restraint, and sustained American pressure.

Vance's "Praise Jesus" may have been a joke. But the message underneath it was serious: this administration will take allies where it finds them, push back against friends who undermine its diplomacy, and measure the pope by what he actually says rather than what the press says he said.

That is a harder line to walk than most people appreciate. And the vice president seems to know it.