Since 2005, Radomski has been part of the CDU's leadership in North Rhine-Westphalia, under successive chairmen
Jürgen Rüttgers (2005–2010),
Norbert Röttgen (2010–2012),
Armin Laschet (2012–2021) and
Hendrik Wüst (since 2021). Radomski became a member of the Bundestag in the
2013 German federal election, representing the
Krefeld II – Wesel II district. She is a member of the Budget Committee and the Audit Committee. In this capacity, she serves as her parliamentary group's
rapporteur on the annual budget of the
Federal Ministry of Education and Research. Since 2022, she has also been part of the so-called
Confidential Committee (
Vertrauensgremium) of the Budget Committee, which provides budgetary supervision for Germany's three intelligence services,
BND,
BfV and
MAD. From 2013 to 2017 and again since 2022, Radomski has also been a member of the Parliamentary Advisory Board on Sustainable Development. In addition to her committee assignments, she was part of the German delegation to the
Parliamentary Assembly of the Council of Europe (PACE) from 2005 to 2018. == Other activities ==