The coalition also integrates the political movement Democratic Intervention (Portuguese: Intervenção Democrática or ID).

Along with the Left Bloc, the coalition supported the minority Socialist Costa Government from 2015 until 2019 under a confidence and supply agreement.

[7] This was known as the "Geringonça" (Contraption) deal, a setup that Prime minister António Costa decided to end following the 2019 elections.

In the 2024 election, the CDU won four seats and the Greens zero, with the coalition achieving just 3.3 percent of the votes.

That was sometimes said to mean that CDU worked just like a bee (collectively and every day) and the hexagons were meant to represent the cell-based Leninist organization of the PCP.