In an interview published in the most recent issue of "Herder Korrespondenz" the Prefect for the Congregation of the Doctrine of the Faith, His Eminence Cardinal Gerhard L. Müller, states that His Excellency Archbishop Víctor Manuel Fernández', Rector of the Catholic University of Buenos Aires (which rectorship he assumed in 2009 given to him by Cardinal Bergoglio, but only finally confirmed in 2011 after answering some doubts by the CDF regarding the doctrinal content of some of his published articles; he was also named Archbishop by the same Bergoglio, Pope Francis, May 13, 2013) published opinion regarding the Papacy is heresy. Cf. Sandro Magister's article today.
The same Archbishop Fernández is the apparent ghostwriter (which he publicly admits) of the confused pen of the Pontiff. E.g. his "situation ethics" background and Amoris Laetitia.
Well done Your Eminence Cardinal Müller! It is, after all, the job of the Prefect of the CDF to protect the doctrine of the faith wherever it is threatened. Perhaps His Eminence should remove the Archbishop from his position at the Catholic University!