Leo XIV held his first Mass as pope in the Sistine Chapel on Friday, in what was a private service for the 132 voting cardinals who elected him as the 267th leader of the world’s 1.4 billion Catholics a day earlier.

The new pope has suggested he plans to be a champion of the working class just as Pope Leo XII was during his time leading the Catholic Church in the late 1800s and early 1900s.

Cardinals from 70 countries have gathered at the Vatican to elect a new Pope in the most diverse conclave in history.

The United States is home to 10 of the 133 cardinals eligible to vote for the next pope. That's more than any other nation except Italy, home to 17 of the electors who will gather at the Vatican’s Sistine Chapel on Wednesday for the conclave that will choose a successor to Pope Francis.

Cardinal Blase Cupich, Archbishop of Chicago, said he expects Pope Leo XIV "feels an obligation," to speak to what he called the issues of the day, amid "real challenges globally."

On "This Week," Cardinal Cupich said Pope Leo XIV may call for changes to the United States immigration system.

Cardinals wrapped up their pre-conclave meetings Tuesday, trying to identify a possible new pope who could follow Pope Francis and make the 2,000-year-old Ca

Chicago-born Cardinal Robert Francis Prevost, was chosen as the 267th Pope elected by 133 cardinals locked inside the Sistine Chapel on the second day of their conclave - a process that has been in the cultural zeitgeist recently due to the Oscar-nominated movie of the same name starring Ralph Fiennes.