It has been a long time since American Catholics could expect to see the country’s president attending weekly mass, but it’s happening now. Every Sunday, President Biden goes to mass. He speaks openly about his faith. He paid tribute in his autobiography to the influence of nuns and priests as he was growing up in Delaware. He can be seen carrying a rosary. This is all heartening, and yet many Catholics, including some bishops, are reserved about the second Catholic president in the history of the US.