[14][15] As Lewica is formed as a unification of the Polish left, it has attempted to diversify its platform and appeal to a broader range of voters, rather than relying mostly on the votes of former officials and civil servants during the PPR period, which had been and continues to be one of the Democratic Left Alliance's largest voting blocs.

This attempt, however, was met with somewhat limited success by the fact that the coalition's pro-LGBT rights platform failed to appeal to working class and economically left-leaning Poles, which tend to favour a more socially conservative policy (especially as both economically interventionist and social conservative positions were already being provided by the right-wing PiS party).

[6][16][17] Despite this, some sociologists theorized that the unification of the parties could lead to an overall mobilization of leftist voters,[18] which could now feel that their vote for the coalition wouldn't be wasted.

[17][21] At the same time, the party also received a considerable boost in support among older voters after the ruling PiS party passed a "degradation law", which cut retirement pensions and disability benefits for thousands of former bureaucrats during the PPR period, whose main income was now directly threatened by the new government policy.

This led to an expansion and consolidation of the otherwise shrinking of the Democratic Left Alliance's previously described voting bloc.