Conspirator 6
By 
Alas, it apparently isn’t Ginni:
The indictment of former President Donald J. Trump in connection with his efforts to retain power after his 2020 election loss left a number of unanswered questions, among them: Who is Co-Conspirator 6?
The indictment asserted that six people aided Mr. Trump’s schemes to remain in office. It did not name any of them, but most were reasonably easy to identify through details contained in the indictment, like Rudolph W. Giuliani, the former New York mayor and lawyer for Mr. Trump (Co-Conspirator 1), and John Eastman, the lawyer behind the idea that Vice President Mike Pence could block or delay certification of Mr. Trump’s loss on Jan. 6 (Co-Conspirator 2).
Co-Conspirator 6 was more of a mystery. Identified by the indictment as “a political consultant who helped implement a plan to submit fraudulent slates of presidential electors to obstruct the certification proceeding,” the person could have been a number of figures in Mr. Trump’s orbit.
But a close look at the indictment and a review of messages among people working with Mr. Trump’s team provides a strong clue. An email from December 2020 from Boris Epshteyn, a strategic adviser to the Trump campaign in 2020, to Mr. Giuliani matches a description in the indictment of an interaction between Co-Conspirator 6 and Mr. Giuliani, whose lawyer has confirmed that he is Co-Conspirator 1.
Not 100% ironclad, but seems overwhelmingly likely. We were never promised the most entertaining outcome.