Former President Donald Trump criticized Pope Leo XIV on Saturday following the pontiff's meeting with Chicago Mayor Brandon Johnson at the Vatican.

In a post on his Truth Social platform, Trump called Johnson "useless" and suggested that Vatican officials should have advised the Pope against the meeting. The former president also referenced Iran in his statement, warning that the country "cannot have a nuclear weapon," though the connection between this comment and the papal meeting was not immediately clear.

Johnson, a Democrat who took office as Chicago's mayor earlier this year, met with Pope Leo XIV during what appeared to be an official visit to Rome. Details about the substance of their discussion were not immediately available.

Trump's comments represent the latest in a series of public criticisms he has directed at Democratic officials and international figures since leaving office. The former president has frequently used his social media platform to comment on current events and political developments.

The Vatican has not responded to Trump's remarks about the papal meeting with the Chicago mayor.