Early groups of Ulivists were formed in 1995–1996, during the campaign for the 1996 general election, by close supporters of Romano Prodi who, as him, were not members of any party of The Olive Tree. Ulivists organized "Clubs for Prodi" and the "Citizens for The Olive Tree" association. Although most Ulivists took part to the campaign only as activists and remained grassroots supporters during Prodi II Cabinet, some were elected with the Italian People's Party–Democratic Union. In 1998 Prodi lost a vote of confidence and was replaced by Massimo D'Alema as Prime Minister. D'Alema, along with Franco Marini, then leader of the Italian People's Party, pursued a political line aimed at strengthening the parties in spite of the coalition. In opposition to this, Prodi supporters, grassroots activists, disgruntled Populars and other groups organized a new "Ulivist" party, The Democrats. Prodi led the party to a good result in the 1999 European Parliament election. Some months later Prodi was nominated President of the European Commission and Arturo Parisi succeeded him as party leader. In 2000 The Democrats agreed with other centrist parties, including the Italian People's Party, to form a joint list for the 2001 general election. The list, which gained a considerable success, was transformed into a party in early 2002 under the name of Democracy is Freedom – The Daisy. Parisi was Vice President and President of the Federal Assembly of the party. The Olivists became soon the internal opposition to Francesco Rutelli within the party and were always strong supporters of the creation of a "Democratic Party". This actually happened with the foundation of the Democratic Party in 2007.
In July 2008 the core Olivists broke with Bindi and her group, who formed Democrats Really, a separate association. The reason of the separation was that Bindi was much less critical of PD leader Walter Veltroni and preferred to collaborate with him, instead of simply opposing him. On the other hand the Olivists decided to continue their frontal opposition to Veltroni, especially denouncing his political line and the lack of internal democracy within the party. In this respect, the Olivists, who are very marginalized in the PD and may even split from it, contrarily to most PD leading groups, want to continue the alliance with Italy of Values, Antonio Di Pietro's populist party, support some of his campaigns and are strongly fighting for "democracy within the parties", and especially within the PD. In the 2009 Democratic Party leadership election most Olivists supported Pier Luigi Bersani, although the faction did not officially support any candidate. Parisi finally voted for Dario Franceschini instead because of his support of primaries. On 11 November Parisi declared the experience of the Olivists closed, but they continue to act within the party as a loose group. In the 2013 Democratic Party leadership election most Olivists, including Parisi, supported Matteo Renzi, who was elected by a landslide.
