55 The latest events and the assertions which preceded these events, accompanied them, and interpreted them, take away from Us this fondly held supposition. Therefore We must say, and do hereby say, that he is a Catholic only in name and by baptism (in contradiction to the obligations of that name and to the baptismal promises) who adopts and develops a programme with doctrines and maxims so opposed to the rights of the Church of Jesus Christ and of souls, and who also misrepresents, combats and persecutes Catholic Action which, as is universally known, the Church and its Head regard as very dear and precious.
Source: Non Abbiamo Bisogno (Vatican.va)