Jacinda Ardern | Why not enough leaders know when it's time to resign

New Zealand’s Prime Minister Jacinda Ardern is stepping down from her premiership, admitting she has "no more in the tank" and has been suffering from burnout.

In a news conference on Thursday January 19, a tearful Ardern said it had been a tough five-and-a-half years as PM, and that she needed to step aside.

"I had hoped to find a way to prepare for not just another year, but another term - because that is what this year requires. I have not been able to do that," Ardern, 42, told a news conference.

Ardern won plaudits across the political spectrum for her handling of the COVID pandemic, which saw the country face some of the strictest measures globally but also resulted in one of the lowest death tolls.