During 2017 there were lengthy talks on the creation of an electoral list to the left of the Democratic Party (PD), within the PD-led centre-left coalition. In this process Giuliano Pisapia, a former mayor of Milan, launched the Progressive Camp (CP) and long pondered the possibility of leading the proposed list, including minor established parties, assorted leftists and, most notably, former members of Left Ecology Freedom (SEL) – which had been folded into the more radical Italian Left (SI).
Some of Pisapia's followers launched the Progressive Area (AP) and looked set to join Together,[5][6] However, after tensions with Together leaders,[7] it was announced that AP had signed an agreement with +E, already composed of the Italian Radicals, Forza Europa and the Democratic Centre, also with the centre-left.[8][9]
In the election the list obtained a mere 0.6% of the vote and no seats. However, two of its members elected in single-seat constituencies: Nencini (PSI) to the Senate in Arezzo and Serse Soverini (AC) to the Chamber in Imola.