Imperial Censor Cao used Minister Zhang's connections, and he was someone nurtured by Minister Zhang. He could be considered a semi-member of the Prime Minister Faction.
Whether it was out of the court's great righteousness or factional grievances, Imperial Censor Cao had more than enough reasons to impeach Duke An and his son.
Once Imperial Censor Cao took the lead, soon, many mid to low-level officials angrily submitted their impeachment memorials. The high-ranking ministers of third-rank or above in the court were still observing the palace situation and the Emperor's attitude, not getting involved for the time being. However, the wave of impeaching the Zheng Family's treason and condemning the Zheng father and son had an unstoppable momentum spreading.
These impeachment memorials, stacked up to two feet high.
