In July 2000, Andrej Bajuk, by the time Prime Minister of a centre-right coalition government, and other centrist Christian democrats disagreed with the rest of the Slovenian People's Party (SLS+SKD) over the question of a new electoral system.

Other former members of the Slovene Christian Democrats opposed to the merger of SKD and SLS, followed the foundation appeal.

[10] At the 2008 legislative elections, the party won only 3.4% of the popular vote and did not win any seats in the 90-seat National Assembly.

At the 2011 Slovenian parliamentary election on 4 December 2011, it won 4.9% of votes, thus gaining four seats in the National Assembly.

[11] In the 2014 European election, NSi ran in a joint electoral list with the Slovenian People's Party, which received 16.6% of the vote and came in second place, returning 2 MEPs.

[12] The party received 5.5% of the vote in the Slovenian parliamentary election on 13 July 2014, and won five seats in parliament.