This is This Week, George Stephanopoulos interviewing Senator Marco Rubio about Pope Francis (at 6:46 in the video):
STEPHANOPOULOS: Rush Limbaugh even suggested he's a Marxist. Do you agree with that criticism?
RUBIO: I'm a Roman Catholic. For me the pope is the successor of Peter. He's the spiritual head of the church who has authority to speak on matters, doctrinal matters and theological matters, and I follow him a hundred percent on those issues. Otherwise I wouldn't be a Roman Catholic. The pope is an individual, an important figure in the world, also has political opinions, and those of course we are free to disagree with.