Marco Rubio is expected at the Vatican on May 7 for an audience with the head of the Roman Catholic Church VATICAN, May 6. /TASS/. Pope Leo XIV is not inclined to link the visit of US Secretary of State Marco Rubio to "today’s issues" and expressed hope for "good dialogue." Rubio is expected at the Vatican on May 7 for an audience with the head of the Roman Catholic Church. According to protocol, after the conversation with the pontiff, negotiations take place in the Vatican’s Secretariat of