Forget the excuses, the memory lapses, the absence of records of correspondence and so on. At the end of the day, the furore over David Cunliffe's contact with controversial Chinese businessman Donghua Liu boils down to one simple question: Can Cunliffe be trusted?
Cunliffe insists he has not lied. But the subdued mood yesterday on the usually noisy Labour benches in Parliament spoke volumes as to what his colleagues really think when it comes to the likely damage their leader has caused to himself and the party - and so very close to an election.
Amid firm rumours that Grant Robertson "has the numbers" to roll Cunliffe, the latter's latest self-inflicted blow to his reputation and credibility may turn out to be the last straw for his caucus colleagues.
The facts are simple. Asked repeatedly at a press conference on Tuesday whether he had ever advocated for Liu in the latter's application for New Zealand residency, Cunliffe issued emphatic denial after emphatic denial.
It subsequently turns out that Cunliffe wrote a letter to the Immigration Service seeking a progress report on Liu's application.