Stefan Niesiołowski again joined the Civic Platform.
During the press conference, he stressed the importance of fighting for democracy and freedom.
"It is simply a large honour for me that I, as a associate of the PO, can fight to not lose this large treasure, which is freedom and democracy recovered after 8 terrible years," he said.
He warned against triumphalism, quoting Wojciech Młynarski: “The people who thought they might feel very bad are very bad.” He stressed that "nationalism in Poland lifts a lousy head“ pointing to the presence of a organization proclaiming slogans that he believes should not take place in public space.
Stefan Niesiolowski comes from a household of deep patriotic traditions. His grandfather, Bronisław Łabędzki, was exiled to Siberia in 1905 for organizing a school strike. His uncle, Tadeusz Łabędzki, was a pre-war activist of the All-Polish Youth and died in 1946 during an interrogation conducted by officers of the Ministry of Public Security.
Stefan Niesiolowski co-founded a group at the threshold of the III Polish Republic to be the next incarnation of the end: The Christian-National Unity and it sat in its direction from the beginning. In the contract parliament, together with Mark Jurek and Jan Szopuszinski, he actively shaped the character of the party. In 2001, he decided to leave the group and was briefly associated with the Right Covenant. 2 years later, in 2003, together with Zbigniew Romaszewski and Jan Rulewski he co-founded Sovereignty-Work-Justice.
In 2005, as a non-partisan candidate, he earned a senator's mandate from the Łódź territory from the advice of the Civic Platform. The organization put forward his candidacy as Vice Marshal of the Senate, but this proposal was rejected in a secret ballot.
In 2007, he again became an MP. He again obtained his parliamentary mandate in 2011 and 2015. In September 2016, he left the PO and co-founded the parliamentary wheel and the European politician association, which later merged with the Union of European Democrats. In 2017, he joined the national board of UED and then in 2018 joined the national club PSL-UED, which in 2019 became PSL-Koalicja Polska. He was besides a associate of the Support Committee of the Museum of past of Polish Jews Polin.
In 2019, the prosecution accused him of corruption between 2013 and 2015, accusing him of accepting and demanding material and individual benefits from entrepreneurs. Niesiołowski gave up immunity and denied the allegations he had made. He did not run for the 2019 parliamentary election, announcing the end of his political career. In June 2022 the territory Court in Łódź acquitted him, and in September 2023 the territory Court upheld this ruling, ending the proceedings in the case.
It is hard to measure what caused him to despise household traditions and his own first political elections.
