January 14, 2017 Grant Robertson and Jacinda Ardern at the launch of his Labour Party leadership bid in October 2014. Photo: Hannah Peters / Getty Images MP Grant Robertson Announces Leadership Partner and Campaign. Catherine McGregor | Deputy Editor Subscribe to The Bulletin to get all the day’s key news stories in five minutes – delivered every weekday at 7.30am. Email * Success! You are now signed up! Something went wrong. Try again later?