‘I don’t have enough in the tank,’ complained 42-year-old Jacinda Ardern, Prime Minister of New Zealand. ‘For me, it’s time,’ she added, during her surprise resignation speech this morning.

Previously the youngest Prime Minister, it appears she has run out of energy right when public opinion is turning on her beloved Labour Party.

While there have been whispers about the future of her regime for months, no one expected to wake up to news of her stepping away from power so close to an election on October 14.

Her time as Prime Minister is set to end no later than February 7 after...