ABC News has obtained portions of videos of the proffer sessions of both Ellis and Sidney Powell, two attorneys who aided Trump's efforts to overturn the election. The videos for the first time reveal details of what they have told law enforcement since agreeing to cooperate last month in the district attorney's election interference case.

Ellis, in her proffer session, informed prosecutors that senior Trump White House official Dan Scavino told her "the boss" would refuse to leave the White House despite losing the election, and alluded to two other instances she said were "relevant" to prosecutors -- but appeared to be prevented from disclosing those in the video portions obtained by ABC News due to attorney-client privilege, which hindered portions of her proffer.

Powell, meanwhile, explained to prosecutors her plans for seizing voting machines nationwide and claimed that she frequently communicated with Trump during her efforts to overturn the 2020 election -- though both now claim she was never his attorney.

In the session, Powell reiterated the false assertion that Trump won the election -- but acknowledged in the video that she didn't know much about election law to begin with.

"Did I know anything about election law? No," she told Fulton County prosecutors. "But I understand fraud from having been a prosecutor for 10 years, and knew generally what the fraud suit should be if the evidence showed what I thought it showed.