Vice President JD Vance and Secretary of State Marco Rubio will attend Pope Leo XIV’s inaugural mass in Vatican City on Sunday, a source familiar with the plans confirmed to NBC News.

The mass in St. Peter's Square will once again be attended by dozens of world leaders. Vice President JD Vance and Secretary of State Marco Rubio will lead the American delegation at the pontifical mass of León XIV,

Vance will travel this weekend to Vatican City where he will attend the inaugural Mass of Pope Leo XIV, history’s first American pontiff, who has previously been critical of him.