The NNP fared poorly in the
general election of 1999. With 6.87% of the vote, the party lost votes both to the DP and ANC as well as its status as the official opposition nationally and in most provinces. But it remained influential in the
Western Cape province, where it was the party of government, despite being pushed into second place there by the ANC. The party faced comparatively smaller losses in the province in large part due to the retention of most of its
coloured support, but it also fared better with white voters than in most other provinces. 50% of its voter base now came from this one province, and despite retaining representation in all nine provincial legislatures, it was seemingly becoming a regional political force. The party remained in power in the Western Cape through a coalition with the Democratic Party. The two then began to plan a merger in 2000, under the name
Democratic Alliance (DA). By 2001 the party had broken away from the DA before the merger could be completed, and instead entered close co-operation with the ANC. In December 2001, the NNP formed a new provincial coalition with the ANC in the Western Cape, and members of the NNP were appointed to the national cabinet. During the
general election of 2004, the NNP was almost eliminated from parliament. Much of its support deserted the party, due to unhappiness with its alliance with the ANC, and its share of the national vote dropped from 6.87% in 1999 to 1.65%, having been 20.4% under the National Party name in 1994. The party was all but wiped out in most provinces and retained only limited pockets of large support in the Western Cape, where it was pushed into a distant third place behind the DA in its former stronghold. ==Dissolution and merger with the ANC==