what did george gallup use to accurately predict the outcome of the 1936 election?

i believe george gallup used a poll in 1936

assessment is the missing word

to reform the distraught soviet union, the democratization of the communist party was promoted through party secretary mikhail gorbachev's policies of “perestroika” and “glasnost.” perestroika refers to the reconstruction of the political and economic system established by the communist party.