Don Brash will resign to the Act Board tomorrow after it became clear that he would not get back into Parliament.
His party has failed to secure enough party votes to get more than one MP. Epsom candidate
John Banks won his seat and will return to Parliament as the party's only representative.
Tonight Don Brash thanked his party's supporters.
"Despite all the commentators, all the polls, all the media, we did it. You did it, John Banks did it, the people of Epsom did it.