Wadley, fresh from relentlessly pursuing Tony Blair for his part in the Black Rod affair, was on the verge of bagging a trophy scalp.
Wadley, it is understood, said she would get back to Livingstone in a few weeks.
Wadley was repeatedly asked to respond to accusations that the Standard has been over-obsessive in its reporting of Scufflegate and that she has never met Livingstone.
The promotion of Wadley to the editor's chair in 2002 from the Daily Mail, where she had been deputy editor, provoked unease in the mayor's office and these fears were heightened when Livingstone wrote to her offering lunch but received no reply.
A few weeks into Wadley's editorship, the paper accused Livingstone of a drunken attack during a late-night party on his partner, who had been the office manager at ES Magazine, and her friend, a designer on the same publication.
Wadley, viewed as an acolyte of Dacre, was always likely to be damned by association.