PHEW. That was some curveball.
Totally out of left field (sorry ... right field), John Key announces he's quitting and eclipses TV pundit Hayley Holt's "bombshell" of the previous day that she is standing for the Green Party.
Suddenly the impregnable National fortress is looking a bit battered as three contenders line up for the prime minister's job.
Although a proven failure as leader, Bill English represents the safe pair of hands; Jonathan Coleman is selling that most marketable political product, "change", as though implying Key had been heading in the wrong direction.
No surprise that the ever-ambitious Judith Collins has seized her chance.