USEI was founded in 2006 by , a
Calabrian-born entrepreneur. In the
2006 general election the party won 4.7% of the vote in the South American constituency of the
Chamber of Deputies. USEI did not participate in the
2008 general election, but continued to be active and improve its network. In the
2013 general election USEI won 13.3% of the vote in the South American constituency and elected
Renata Bueno to the
Chamber of Deputies. Bueno was the daughter of
Rubens Bueno, a long-time member of the
Brazilian Chamber of Deputies for the
Brazilian Socialist Party. After the election, she formed a parliamentary alliance with the alternative
Associative Movement Italians Abroad (MAIE) within the
Mixed Group of the Chamber, that lasted for two and half years. Despite the fact that USEI's and Sangregorio's political orientation was broadly
centre-right, Bueno, due to her family's political upbringing, started to be supportive of the
Democratic Party (PD), the country's main
centre-left party, and, particularly, its leader
Matteo Renzi, who served as
Prime Minister from February 2014 to December 2016. In November 2015, Bueno joined forces with
Identity and Action (IdeA), a centre-right party opposed to Renzi. Subsequently, she formed a sub-group, named after the USEI (and, later, "USEI–IdeA"), within the Mixed Group of the Chamber, along with
Aniello Formisano of
Italy of Values (IdV), a party traditionally affiliated to the centre-left, and
Guglielmo Vaccaro of
Unique Italy (IU). Right after its formation, the sub-group was joined also by the other two IdeA deputies,
Eugenia Roccella and
Vincenzo Piso. In the
2018 general election the party won 18.7% of the vote in the South American constituency and Sangregorio was elected to the Chamber of Deputies, while Bueno led the
Popular Civic List to 6.3% (compared to 0.5% in Italy) and was not elected. USEI ran also for the Senate, obtaining 20.4% and the election of
Adriano Cario. In May 2018 Cario left the USEI and switched to MAIE. On 18 December 2019, USEI formed with the centrist allies of
Forza Italia (
Alliance of the Centre and
Us with Italy) and the centre-right
Cambiamo! the new sub-group within the
Mixed Group "Noi con l'Italia-USEI-Cambiamo!-Alleanza di Centro". ==Electoral results==