Wikipedia
Siegen-Wittgenstein is a Kreis (district) in the southeast of North Rhine-Westphalia, Germany. Neighboring districts are Olpe, Hochsauerlandkreis, Waldeck-Frankenberg, Marburg-Biedenkopf, Lahn-Dill, Westerwaldkreis, Altenkirchen.
'''Siegen-Wittgenstein ''' is one of the 299 single member constituencies ( German: Wahlkreis) used for the German parliament, the Bundestag. One of sixty four constituencies in the state of North Rhine-Westphalia, it is coterminous with the Siegen-Wittgenstein district. The constituency elects one representative under the mixed member proportional representation (MMP) system. Under the current constituency numbering system, it is designated as constituency 148.
The constituency has existed in various forms since the 1949 election, the first election in West Germany after World War II. Since its creation, it has been a marginal constituency, won by both the main political parties of Germany, the Social Democratic Party of Germany (SPD) and the Christian Democratic Union (CDU). The current representative is Volkmar Klein of the CDU, who gained the constituency from the SPD at the 2009 election.