Raschke attended the Paul Gerhardt Gymnasium in Lübben and passed his Abitur exams there in 2002.
In the 2009 German federal election he stood as a candidate in the Dahme-Spreewald – Teltow-Fläming III and was number 2 on the Brandenburg state list of the Greens.
From 2010 to 2012, Benjamin Raschke was a research assistant for the Alliance 90/The Greens parliamentary group in the Bundestag, working for the environmental policy spokeswoman Dorothea Steiner [de] and the deputy parliamentary group leader Bärbel Höhn.
In the 2019 Brandenburg state election, Raschke was the Green Party 's top candidate together with Ursula Nonnemacher [de].
[3] In the 2024 Brandenburg state election, Raschke was the Green Party's top candidate together with Antje Töpfer.