https://www.vdare.com/articles/patrick-j-buchanan-does-the-pope-believe-in-hell
…If Francis made such a statement, it would be rank heresy.
Had the pope been speaking ex cathedra, as the vicar of Christ on earth, he would be contradicting 2,000 years of Catholic doctrine, rooted in the teachings of Christ himself. He would be calling into question papal infallibility, as defined in 1870 by the Vatican Council of Pius IX.
Questions would arise as to whether Francis is a true pope.
The Vatican swiftly issued a statement saying the pope had had a private conversation, not a formal interview, with his friend Scalfari.
The Vatican added: “The textual words pronounced by the pope are not quoted. No quotation of the aforementioned article must therefore be considered as a faithful transcription of the words of the Holy Father.”
Sorry, but this will not do. This does not answer the questions the pope raised in his chat. Does hell exist? Are souls that die in mortal sin damned to hell for all eternity? Does the pope accept this belief? Is this still the infallible teaching of the Roman Catholic Church?…