This quick guide outlines the current rules relating to the election of leaders for the four largest federal parliamentary parties: the Liberal Party (LIB), the Nationals (NATS), the Australian Labor Party (ALP) and the Australian Greens (AG).

More power is concentrated inside Canberra’s Parliamentary Triangle than anywhere else. The Constitution doesn’t mention the Prime Minister but that office is where the power is. We look at how Prime Ministerial power has changed in the 21st Century. And, over the same time period, another part of the Canberra landscape has gained a huge...

Jacinda Ardern is the youngest person to have held the role of New Zealand Prime Minister in 150 years. She is comfortably the most popular politician in the land, and one of the brightest stars in the international political firmament.

Scott Morrison has proved himself adept at manipulating party-room sentiment, but his efforts so far at wooing the electorate have not been spectacularly successful, writes Peter Brent.

New Zealand's new Labour Prime Minister, Jacinda Ardern, gives her first Australian interview since taking power.