While the Vatican has detailed laws and rituals to ensure the transfer of power when a pope dies or resigns, they do not apply if he is sick or even unconscious.

Cardinals, according to the United States Conference of Catholic Bishops (USCCB), are bishops and Vatican officials from all over the world who are personally chosen by the pope. They are recognizable by their red vestments and they elect a new pope when the time comes.

Under Catholic canon law, the pope holds several key titles, including the successor of the Apostle Peter, the head of the college of bishops, the Vicar of Christ and the pastor of the universal Catholic Church. These roles, along with his power, have remained unchanged since he became the 266th pope on March 13, 2013.