Early in his career, Gahrton was elected chairman of the youth and student wing of the Swedish Liberal Party, in 1969.

[6] While serving in Parliament for the Green Party, Gahrton argued that Olof Palme was murdered by Israeli forces in order to block mediation attempts in the Middle East.

"[6] In March 2009, Gahrton participated in a large protest against the Davis Cup match between Sweden and Israel in Malmo.

Gahrton claimed that this decision had already given demonstrators some success, stating "We have been helped by brave politicians in Malmö.

The book was criticized by fellow parliament members as being a thinly disguised rip-off of Dan Brown's The Da Vinci Code, which dominated Sweden's bestseller lists at the time, and Gahrton was accused of wanting to cash in on Brown's success.