The German Party had been instrumental in setting an electoral threshold (either five per cent of the national vote or alternatively three constituency seats) for all parties contesting a federal election and this led to problems when the CDU refused to allow German Party candidates a free run for a reasonable number of constituency seats as it had done in 1957.[7] With the DP facing elimination from the Bundestag, nine of its 17 parliamentary incumbents left the party to join the CDU. As a result, the German Party quit the government in 1960, a year before the next federal election, and merged with the refugees' party (All-German Bloc/League of Expellees and Deprived of Rights) to form the All-German Party (Gesamtdeutsche Partei, GDP).