Archbishop Carlo Maria Viganò has recently made comments that a Cardinal present at the Conclave in 2013 which gave us the Bergoglio has made statements that the election of Bergoglio was fraudulent.
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It is entirely believable given the actions of Bergoglio and his sycophants and the machinations of Mr. McCarrick and the rest of the mafia.
The alleged Cardinal is concerned about coming forward due to the "pontifical secret." Well, if true, he already broke it. Further, if Bergoglio is not the pope, then there is no "secret" to maintain.
If this is true, the Cardinal must speak out. He must clear the air and call on those present to do likewise.
It really is that simple.
If not, then he can go to his grave and throw himself on God's mercy for not interventing to save the Church and the faithful for he would be a complicit coward and an accomplice to the destruction.