In the 2015 parliamentary elections, Hennig-Kloska ran for the Sejm in the
Konin district, occupying the top spot on the electoral list of the
Modern party. She won a seat in the 8th term of the Sejm with 7,306 votes. On May 26, 2017, she succeeded
Katarzyna Lubnauer as the spokesperson for Modern. In the 2019 elections, she successfully sought re-election as a Member of Parliament, running on behalf of the
Civic Coalition and receiving 16,813 votes. In February 2021, she left the Civic Coalition parliamentary club and Modern to join the
Poland 2050 party. In the 2023 elections, Hennig-Kloska secured a parliamentary seat for the third time, running as a candidate of the
Third Way coalition and receiving 30,334 votes. On December 12, 2023, the 10th term Sejm elected her as the
Minister of Climate and Environment in
Donald Tusk's third government. The following day, she was officially appointed to the position by the President of Poland,
Andrzej Duda. In January 2024, she was further appointed by the President as a member of the Council for Social Dialogue. On February 18, 2026, together with 17 other MPs and senators, she announced her intention to leave Poland 2050 and to establish a new parliamentary club called The Centre. == Electoral history ==