From 1989 to 1993 he served as spokesperson for the Electoral Reform Coalition during the campaign that led to the introduction of mixed-member proportional (MMP) representation.

Subsequently, he played a major part in getting legislation passed to allow STV voting in local body elections in New Zealand.

[2] He also served as the Green Party spokesperson on Buy Kiwi Made,[3] commerce, electoral reform, finance and revenue, land information, regional development and small business, superannuation, sustainable economics, state services, statistics, tourism, trade, and waste.

[5] His casket arrived on board an electric bus and his wake took place at the adjacent Warner's Hotel.

[6] The Parliament showed its respect for Donald by suspending a day of business, and a minute of silence was observed in the House of Representatives.