There's no overall guideline for leadership challenges in New Zealand politics, which are left to parties to set the rules.

Former New Zealand prime minister Jacinda Ardern looks back on her life, from an early religious upbringing to the seat of global politics.

The Labour Party has invited New Zealand First to support its newest member's bill to repeal the Regulatory Standards Act.

Meanwhile, Christopher Luxon has watched his approval rating sink to minus 14. Two years into their first term, prime ministers should still be enjoying their honeymoon with voters. Instead, Luxon is ...