He was an active member of the Confederation of Swedish Conservative and Liberal Students and was chairman between 1972 and 1973.
The Moderate Party, however, lost the election in 1994 and Cederschiöld returned to leading the opposition.
[1] The 1998 election saw the return of the Moderate Party to power in Stockholm and Cederschiöld to the post of Mayor.
The new Moderate Party administration launched a wide-reaching reform programme with cuts in both taxes and welfare benefits.
The 2002 election, however, was catastrophic for the Moderate Party on the national level and that also swept the Social Democrats into power in Stockholm.