Nadler was a member of the Young Conservatives as a teenager during the early 1980s, and has spoken about how friends at the BBC found it difficult to understand her political affiliation.
She returned to the BBC two years later to work as a political producer; initially, this was at a regional level on the magazine programme Around Westminster, but eventually she was offered a post with the broadcaster's Sunday lunchtime political flagship, On the Record (presented first by Jonathan Dimbleby, then by John Humphrys), where she was both producer and reporter.
The book was well reviewed, and brought her further work as a political commentator and author who makes regular appearances on radio and television, as well as writing for various newspapers and magazines.
She has written for various think tanks, including the Centre for Social Justice, where she collaborated with Sajid Javid on a report and commission looking into measures to combat child sexual exploitation.
Following the summer of 2020, she became involved with the grassroots campaign group Don't Divide Us to make the case for colour-blind antiracism, and has since written extensively about ideological indoctrination in British schools, particularly for Civitas.