Article: On August 23, after the failure of GKChP, in the presence of Gorbachev, Yeltsin signed a decree suspending all activity by the Communist Party of the Russian SFSR in the territory of Russia. On November 6, he went further, banning the Communist Parties of the USSR and the RSFSR from the territory of the RSFSR.

Question: Aside from Yeltsin, what notable figure was present at the signing of the August 23 decree?
Gorbachev