Throughout the ‘super election’ year 2002, the Public Opinion Research Centre investigated how voters’ decisions developed, with its September survey focusing, inter alia, on the coming Senate election. Almost a half (43%) of those who said they would definitely vote in the Senate election were decided about whom to support. The decision to vote in the Senate election was the most firm among those who would support the ODS and the KSCM in a potential election to the Chamber of Deputies.