In 1989–1990, it took part to the process of integration of the northern regionalist parties, ahead of regional elections, and, finally, in February 1991, it was merged into Lega Nord, taking the current name.

[2] Troubled by splits and a huge loss of popular support (the party was reduced from 18.2% to 7.8% in just three years), LNP entered into the centre-right House of Freedoms coalition.

In the run-up of the 2010 regional election, Cota was chosen as joint candidate for President by The People of Freedom (PdL) and Lega Nord.

Cota, a republican with no nostalgia for the monarchy, maintained that his message would do well and he would overcome the relative weakness of LNP if compared with Liga Veneta (Veneto) and Lega Lombarda (Lombardy).

In Cota's view, most of his support would come from industrial workers, including those of Southern Italian descent, and Catholics embarrassed by incumbent President Mercedes Bresso's secularism.

[4] In March, Cota was narrowly elected President (he took 47.3% of the vote against Bresso's 46.9%) and LNP tripled the number of its seats in the Regional Council from four to twelve.

Cota was forced to resign in early 2014, due to irregularities committed in 2010 by one of its supporting lists in filing the slates for the regional election, and chose not to stand again.

The founding members of the new LP were Molinari, Alberto Gusmeroli, Alessandro Giglio Vigna, Andrea Giaccone and Flavio Gastaldi.