Analysis: When Christopher Luxon stands in front of the National Party caucus on Wednesday morning, he is likely to be fighting for his political life. As of yet, no MP is yet to publicly put their hand up to take on the Prime Minister – but Newsroom looks at the potential candidates below (in alphabetical order). A confident communicator who can think quickly on his feet, the MP has all the political experience that Luxon lacks, having served as a staffer for Gerry Brownlee and Steven Joyce in the last National government. Simeon BrownThe 35-year-old Pakuranga MP would become the youngest Prime Minister in New Zealand’s history, breaking a 170-year record. She also has a reputation as someone who can be difficult to work with, and a micromanager in her portfolios.