At the parliamentary elections 2006 the NDP took part in the alliance "Block of people's democratic parties" () (together with the Democratic Union and the Democratic Party of Ukraine) but this alliance did not overcome the 3% threshold (wining only 0.49% of the votes) and therefore no seats. After taking responsibility for the defeat Valeriy Pustovoitenko resigned as leader of the party. In his place the party was led by Lyudmyla Suprun.