On 27 April 1972 the opposition had tried to have CDU leader Rainer Barzel elected new chancellor in a motion of no confidence, but Barzel surprisingly missed the majority in the Bundestag by two votes. Rumours that at least one member of CDU/CSU faction had been paid by the East German "Stasi" intelligence service were confirmed by Markus Wolf, former head of the "Hauptverwaltung Aufklärung", in 1997. Nevertheless the following budget debates revealed that the government's majority was lost and only the upcoming organisation of the 1972 Summer Olympics in Munich delayed the arrangement of new elections. On 22 September 1972 Chancellor Brandt deliberately lost a vote of confidence, allowing President Gustav Heinemann to dissolve the Bundestag the next day.