European Parliament Leaders Waldemar Witkowski Marek Pol Members of European Parliament Adam Gierek (2004–2019) Important former members Ryszard Bugaj, left in 1998 Zbigniew Bujak, until c.1997 Tomasz Nałęcz, left in 2004 to newly created Social Democracy of Poland Aleksander Małachowski, died January 26, 2004 Izabela Jaruga-Nowacka, left in 2005, founded Union of the Left References External links Home page 1992 establishments in Poland Former member parties of the Socialist International Labour parties Party of European Socialists member parties Political parties established in 1992 Progressive parties Social democratic parties in Poland