On 17 October 2005 Dunne gave his support to a Labour-led Government, along with Winston Peters' New Zealand First Party and Jim Anderton's Progressive Party. Dunne's decision to support a Labour-led Government disappointed some. During the election campaign Dunne and National Party leader Don Brash publicly sat outside an Epsom café over a cup of tea as a demonstration to the electorate that Dunne could co-operate with National. This demonstration saw the majority of National supporters in Ohariu-Belmont combine with United Future and other Dunne supporters to return Dunne with a comfortable majority. National won the party vote in his seat by 3.57% over Labour. Dunne's party received 5.55%, while the Green Party, which Dunne had criticised heavily in the campaign, received 5.84%.