In the 1970s, she also started cooperation with various undergrounds opposition newspapers, including Więź, Znak, and Res Publica.

After the democratic reforms of 1989 and the ousting of the communist authorities, Anna Radziwiłł was elected on 6 June 1989 to the Senate of Poland.

She also assumed the post of a sub-secretary of state in the ministry of education in Tadeusz Mazowiecki's government.

In 1999, during the government of the Freedom Union-Solidarity Electoral Action coalition, Anna Radziwiłł returned to politics as an adviser to the minister of education.

In 2001, she retired, but returned to public life as Deputy Minister of Education after being nominated by Mirosław Sawicki and confirmed.