Bevan Chuang claims Luigi Wewege knew of the relationship between her and Len Brown in July, three months before the election.
Text messaging between Chuang and Wewege in July and August refer to the relationship. Texting on July 31, in which Chuang discusses why she does not want to be involved in a plan to reveal her relationship with Brown, concludes, "and it won't help my future by saying I'm involved in an extra-marital relationship?"
Chuang also says Wewege knew she and Brown were caught in the Ngati Whatua room in a compromising position by a security guard.
Chuang denies saying she thought Brown had orchestrated her election loss.
"Luigi told me that he felt that Len Brown somehow orchestrated my election loss," she tells the Herald on Sunday. "In the carpark that night with Palino, Palino said that Len should tell people to vote for me and get the 'Labour people to make sure I get elected'."