Warsaw, 29 July 2026

Former Polish Prime Minister Mateusz Morawiecki has founded his own faction in the Sejm following the split of the opposition party PiS, comprising 40 members of parliament and one senator.

Background to the power struggle

Poland's largest opposition party broke apart on Friday over a power struggle between party founder Jaroslaw Kaczynski and former head of government Mateusz Morawiecki. Morawiecki announced in Warsaw the founding of a new formation under the name "Development Plus" (original title: "Rozwój Plus"). According to his remarks, the grouping will comprise 40 members of parliament and one senator.