Last May, both Rubio and Vice President JD Vance attended the pope’s inauguration and spoke privately with him. Vance led the delegation to Rome during that trip, on which they also extended an invitation to Pope Leo from President Donald Trump inviting the pope to the White House. This time around, Vance is staying home and is heading out to Iowa on Tuesday to message for the Trump administration.

Both Vance and Rubio are practicing Catholics and considered top contenders for the 2028 Republican presidential nomination: Vance is currently leading that field by wide margins, though Rubio has notably gained in popularity and name recognition in recent months. Some critics of the vice president are now arguing, in light of the visit, that Vance is being “sidelined” from the conversations with Pope Leo.