The Jami-Lee Ross saga has prompted many to draw parallels with Nicky Hager's 2014 book. Here he argues we're seeing a stark reminder that our politics remain at risk from the poison of dirty politics

Investigative reporter Nicky Hager reviews the new memoir by one of the world's greatest journalists, Seymour Hersh.

Dirty Politics landed like a bombshell in the NZ election campaign of 2014. It may not have affected that outcome, but that was never the ambition. It has, however, made a big impact on our politics, argues Nicky Hager.