As for Labour and National themselves, their fortunes have been mixed. Labour was out of office for most of the nineties, only regaining power when Helen Clark led it to victory and a Labour/Alliance coalition and centre-left government (1999–2002). However, the Alliance disintegrated in 2002. National was defeated in 1999 due to the absence of a suitable stable coalition partner, given New Zealand First's partial disintegration after Winston Peters abandoned the prior National-led coalition. When Bill English became leader of National in 2001, it was thought that he might lead the party away from its prior hardline New Right economic and social policies, but his indecisiveness and lack of firm policy direction led to ACT New Zealand gaining the New Right middle-class voting basis in 2002. When Don Brash became leader, New Right middle-class voters returned to National's fold, causing National's revival in fortunes at the 2005 New Zealand general election. However, at the same time, ACT New Zealand strongly criticised it for deviating from its former New Right economic policy perspectives, and at the same election, National did little to enable ACT's survival. Don Brash resigned as National party leader, being replaced by John Key, who was a more moderate National MP.