In late October 2017 the party and the Union of Democrats for Citizenship and Development (UDD) formed the MDFM–UDD union (initially known as MDFM/PL–UDD).[1] The two parties formally merged as the MDFM–UDD Union in August 2018.[2]
Carlos Neves was elected chairman of the MDFM–UDD Union at its constitutive congress in August 2018.[3]
In August 2018 the new party entered into an electoral alliance with the PDC, which gained 9.5% of the vote and 5 seats in the 2018 parliamentary elections.