Please answer the following question: Information: - Tver Oblast ("Tverskaya oblast") is a federal subject of Russia (an oblast). Its administrative center is the city of Tver. From 1935 to 1990, it was known as Kalinin Oblast, named after Mikhail Kalinin. Population: 1,353,392 (2010 Census). - Mikhail Illarionovich Artamonov ( Russian : ; December 5 ( O.S. November 23 ) 1898 in the village of Vygolovo , Tver guberniya , now Tver Oblast - July 31 , 1972 in Leningrad ) was a Soviet historian and archaeologist , who came to be recognized as the founding father of modern Khazar studies . - Mikhail Ivanovich Kalinin (3 June 1946), known familiarly by Soviet citizens as "Kalinych", was a Bolshevik revolutionary and MarxistLeninist functionary. He served as head of state of the Russian Soviet Federative Socialist Republic and later of the Soviet Union from 1919 to 1946. From 1926, he was a member of the Politburo of the Communist Party of the Soviet Union. - An oblast is a type of administrative division of Belarus, Bulgaria, Kazakhstan, Kyrgyzstan, Russia, Ukraine, and the now-defunct Soviet Union and Kingdom of Serbs, Croats and Slovenes. The term is analogous to "state" or "province". What is the relationship between 'mikhail artamonov' and 'communist party of the soviet union'?
A:
member of political party