President’s international engagements have set stage for explosive confrontations and Pope Francis’s funeral comes at an especially fraught moment

A spectre is haunting Europe: the spectre of Donald Trump flying to the Vatican this weekend and publicly feuding with international leaders in front of St Peter’s Basilica in the midst of the sombre rituals and rites that will mark the funeral of Pope Francis.

The US leader’s first international trip of his second term comes at one of the most politically fractious and fraught moments in recent memory, as his “America first” project sets fire to US alliances and trade relationships around the world. Between international tariffs, the wars in Ukraine and in Gaza, the Trump team’s open antipathy toward Europe and its hard line on immigration from Central and South America, the papal funeral could prove to be a minefield of international diplomacy.