[3] In the 2006 general election the party won 4.7% of the vote in the South American constituency of the Chamber of Deputies.

[8][9] 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.

[10] Despite the fact that USEI's and Sangregorio's political orientation was broadly centre-right,[11][12] 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,[13] who served as Prime Minister from February 2014 to December 2016.

Curiously enough, in November 2015, Bueno joined forces with Identity and Action (IdeA), a centre-right party opposed to Renzi.

[17] 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!