Tensions are escalating between the United States, Vatican City, and Italy, following criticisms directed at Pope Leo XIV from prominent American political figures, including former President Donald Trump and Vice President JD Vance. These criticisms coincide with a planned diplomatic visit to Europe by Marco Rubio, the U.S. Secretary of State, where he is set to meet both the Pope and Italian Prime Minister Giorgia Meloni.
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Rubio’s visit to Europe is scheduled for May 7, during which he will first engage with Pope Leo at the Vatican. The following day, he will convene with Meloni in Rome. Reports indicate that the State Department has not publicly disclosed specific details regarding these meetings, only stating that Rubio will be in discussions with leaders of the Holy See and Italian officials.
Rubio’s previous interaction with Pope Leo XIV occurred in May 2025, shortly after the Pope’s inaugural Mass at St. Peter’s Square, along with Vance. However, Vance, who has become increasingly vocal in his criticism of the Pope, is not expected to join Rubio on this trip. Notably, Vance, a convert to Catholicism, has previously engaged in diplomatic initiatives, including unsuccessful negotiations to address the ongoing conflict in Iran.
Recent social media posts from Trump have further heightened the discord, with the former President calling Pope Leo “WEAK on Crime” and “terrible for Foreign Policy.” Trump expressed a preference for the Pope’s brother, Louis, claiming he aligns more closely with Trump’s “Make America Great Again” ideology. This divide surfaced prominently when Pope Leo condemned violence and expressed grave concerns for civilians affected by the conflict in Iran.
In light of Trump’s comments, Prime Minister Meloni responded publicly, labelling the former President’s ire towards the Pope as “unacceptable.” As a leader of Italy’s conservative Brothers of Italy party, Meloni defended the Pope’s stance, stating that it is appropriate for the religious leader to advocate for peace in the face of warfare. Her assertion delineates a clear separation of church and state, suggesting that moral leadership should be upheld, independent of political agendas.
Moreover, Trump’s reaction to Meloni’s defence of Pope Leo was one of surprise, as he described her lack of support for U.S. and Israeli military actions as indicative of a shift in her attitude towards the United States. This contrasts sharply with his earlier praise for her leadership, highlighting a complex diplomatic relationship between the two leaders.
Vance has also weighed in, suggesting during a Fox News interview that the Vatican should prioritise moral issues over political ones. He cautioned the Pope to choose his theological declarations carefully, further complicating the dialogue between the Vatican and the U.S. administration.
This series of exchanges has elicited mixed reactions, with political analysts observing a potential rift between traditional diplomatic norms and the increasingly outspoken nature of American politics. Many are questioning the implications this may have for international relations, particularly in matters involving the Catholic Church’s stance on global conflicts.
As Marco Rubio prepares for his trip, the diplomatic landscape remains fraught with tension. The upcoming meetings will likely be scrutinised closely by observers keen to understand how this relationship will evolve amidst a backdrop of criticisims, religious leadership, and political agendas. The outcome of these discussions could have far-reaching consequences for not just U.S.-Vatican relations, but also for global peace efforts involving nations embroiled in conflict such as Iran.