 At the Green Party AGM on 30 May 2015 he received the highest number of votes, and was elected male co-leader.Shaw won 54 per cent of the first preference votes, compared to Kevin Hague who won 44 per cent (the other two candidates both won 1 per cent).The day after becoming co-leader, he called for a cross-party consensus on climate change, and said there was room for the Greens and National to work together on the issue.