Inclusive tone of new pope isn't sitting well with some in the 'America First' movement

The morning after his election, Robert Prevost — now Pope Leo XIV and the first American pontiff in the Catholic Church’s 2,000-year history — presided over his first Mass.

In a nod to his predecessor, the late Pope Francis, Leo pledged to align himself with "ordinary people" and pointed to a loss of religious faith for contributing to "appalling violations of human dignity."

"A lack of faith is often tragically accompanied by the loss of meaning in life, the neglect of mercy, appalling violations of human dignity, the crisis of the family and so many other wounds that afflict our society," the new pope said in his homily delivered at the Vatican's Sistine Chapel on Thursday. 

However, the message from the pope – who, like his predecessor, appears to hail from the more inclusive and progressive wing of the Catholic Church – does not appear to be receptive to some in the "America First" movement.

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The founder and leader of the movement, President Donald Trump, on Thursday quickly praised the selection of Leo, who was Chicago-born but has lived much of his adult life in Peru.

"It is such an honor to realize that he is the first American Pope. What excitement, and what a Great Honor for our Country. I look forward to meeting Pope Leo XIV. It will be a very meaningful moment!" Trump wrote in a social media post.

Additionally, Vice President JD Vance, only the second Catholic vice president in U.S. history, congratulated the new pope, adding, "I’m sure millions of American Catholics and other Christians will pray for his successful work leading the Church. May God bless him!"

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However, thanks to a paper trail of weighing in on major American lighting rod issues such as illegal immigration, gun control, and even the 2020 death of George Floyd – which sparked nationwide protests targeting police brutality towards minorities – the new pope was bound to be controversial among some of Trump's millions of MAGA supporters.

Steve Bannon, the former White House chief strategist in Trump's first administration and a conservative Catholic, wrote, "Worst pick ever," in responding on social media to the new pope's election.

That sentiment from Bannon, and much harsher words from some far-right podcasters and social media influencers, was likely fueled in part by apparent past posts from the new pope – which could not be independently verified by Fox News – that were critical of the Trump administration's sweeping and controversial immigration policies.

Pro-Trump conservative commentator Joey Mannarino took to X to charge that "the new Pope has recently attacked JD Vance, shown solidarity with Kilmar Abrego-Garcia and begged Trump to open the borders like Biden had them. This guy is worse than Francis."

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However, influential conservative activist and commentator Charlie Kirk, a MAGA world rock star and Trump ally who leads the powerful Turning Point USA youth organization, was more measured.

"Let’s just say, not so great tweets about having some willingness for open borders. We’ll see kind of how he is on that. Also some George Floyd stuff that I’m not too crazy about," Kirk said in a video posted on X.

Kirk added that "overall, it seems like he’s a pro-life warrior. There’s a lot yet to learn about this pope, but I hope that he will be a strong advocate for strong borders. And for sovereignty."

Popular conservative commentator and radio host Hugh Hewitt seemed receptive to the new pope.

Trump has warmly embraced American Catholics in recent years and captured nearly 60% of the Catholic vote in last year's presidential election, according to a Fox News voter analysis. Four years earlier, former President Joe Biden, the nation's second Catholic president, narrowly captured the Catholic vote.

Among those Catholics who supported Trump is former New Hampshire state House Speaker Bill O'Brien, who is one of the state's two members on the Republican National Committee.

O'Brien told Fox News that he's "very respectful of the votes of the conclave, and I'm also proud that we do have a pope from America."

"I certainly would have liked to have seen someone more in the tradition of Pope Benedict, who held more closely to the traditional doctrines of the church," O'Brien said. "But I'm not sure that Pope Leo is really established now in terms of where he will be. And the fact that he criticized Trump, I suppose that probably shows a less than developed political sense than it does a doctoral sense, which is more important."

O'Brien noted that "any pope, any religious figure for that matter, is going to be concerned about those who are powerless in our society, and rightfully so, but that doesn't mean he's given intense thought to the importance of national borders."

He additionally emphasized that "I'm thrilled about where he comes from, and I'm hopeful about where he's going."