The author considers V. I. Ulyanov-Lenin’s antipatriotic judgments alien to the Russian people, which is reflected in the notes and articles published by him in the years 1905-1918. The author compares the publications under study with the documents adopted by the Bolshevik wing of the Russian Social Democracy through the decisions of the congresses of the Russian Social-Democratic Labour Party and the Russian Communist Party (Bolshevik) and makes a conclusion about Lenin’s supporters’ betrayal of the national interests of Russia during World War I for the sake of coming to power in the country.