Todd Muller is a name on everybody's lips at the moment, but can he defeat Jacinda Ardern?
The National Party's holding an emergency caucus tomorrow after Muller emailed colleagues about replacing his leader, saying it'd be impossible to win the election otherwise.
Auckland MP Nikki Kaye is believed to be eyeing up Paula Bennett's job as deputy.
However, there are concerns from political commentators that no one really knows who Muller is.
Josie Pagani and Trish Sherson joined Andrew Dickens on The Huddle to discuss the leadership options and if Muller has what it takes to become Prime Minister.