New Zealand Prime Minister Jacinda Ardern announced Thursday she will resign next month. "For me it's time," she said at a meeting of members of her Labour Party. "I just don't have enough in the tank for another four years."

Ardern, who became prime minister in a coalition government in 2017, then led her centre-left Labour Party to a comprehensive victory in an election three years later, has seen her party and personal popularity drop in recent polls.

New Zealand Prime Minister Jacinda Ardern announced Thursday she will resign next month. "For me it's time," she said at a meeting of members of her Labour Party. "I just don't have enough in the tank for another four years."

Ardern, who became prime minister in a coalition government in 2017, then led her centre-left Labour Party to a comprehensive victory in an election three years later, has seen her party and personal popularity drop in recent polls.