After German reunification, he entered state politics in Saxony-Anhalt, serving as Minister for the Environment and, eventually, Deputy Minister-President in the CDU cabinets from 1990 to 1994.

The NDPD now was independent and running on a classical liberal platform of a Social market economy, a phased plan to German reunification and entry of the GDR in the European Community.

However, because the NDPD had been reluctant to criticise the SED government even during the Peaceful Revolution[4] and was stained as a former Bloc party, it was initially barred from joining the Association of Free Democrats liberal coalition and fared poorly in the election.

Under Werner Münch, he was additionally appointed Deputy Minister-President after Gerd Brunner, then also FDP leader Saxony-Anhalt, was exposed as having worked for the Stasi.

[5] In the 1994 election, the coalition government lost re-election, with the FDP under lead candidate Peter Kunert being shut out of the Landtag of Saxony-Anhalt entirely.