In the 2005 parliamentary elections, the NOP received 0.06% of the vote. In the 2006 self-government regional elections, it received 0.30%, or about 41 000 votes. In the 2007 parliamentary election, the NOP received 42 407 votes in four electoral districts. In the self-government regional elections in 2010, the party received 0.24% of the vote. In the 2011 parliamentary elections, NOP senate candidate Anetta Stemler, running in the 1st electoral district, received 2934 votes, or 3.10%. She failed to win the Senate seat. After the 2011 parliamentary elections, NOP did not take part in any further elections; be it to Sejm, Senate or even local.