On 18 March 1990 the German Democratic Republic held the first (and last) free and fair parliamentary election in the history of the country as a separate state. Käte Niederkirchner again stood as a candidate and was elected as a PDS member of the new parliament, representing the Berlin electoral district. She was elected by colleagues as one of the six vice-presidents of the new parliament (and the only one representing the former SED party). She received more votes from her fellow parliamentarians than any of the other five parliamentary vice-presidents.