A total of 503 international observers representing up to 40 international organizations and 53 countries are monitoring the elections. The Commonwealth of Independent States (CIS) has sent the greatest number of observers – 147. There are also observers from the Central Election Commission of Russia and the Russian State Duma. The mission of the Parliamentary Assembly of the Council of Europe (PACE) is led by Spanish lawmaker Jordi Chukla. The preliminary results are expected to be available on November 2.