Elections and statistics: the case of "United Russia", 2009-2020
  This survey contains statistics on elections in Russia published in different places and available online. This data is discussed from the viewpoint of statistical model selection. The current version is updated including the materials up to July, 2020 voting on constitutional changes, Belarus 2020 elections and papers that appeared in 2020; most of the data are not consistent with the assumption of fair elections. 
Alexander Shen
stat.AP