Pope Leo XIV will preside over his inaugural mass today in front of St Peter’s Basilica, which marks the formal start of his papacy. JD Vance, Marco Rubio and Volodymyr Zelenskyy are attending.

Vice President JD Vance was expected to be among the dignitaries attending the Mass in St. Peter’s Square. It marks the start of the pontificate of the first American to lead the Roman Catholic Church.

Pope Leo XIV will be inaugurated as pontiff at a Mass in St Peter's Square. The service will mark the official start of his papacy. Leo was chosen as the new leader of the Catholic Church earlier this month following the death of his predecessor,