Everyone remembers McCarthy hearings. A semi forgotten period of the "Red Scare" of 1919. that happening in time period.
The fact that the majority of those who occupied leadership positions in the Bolshevik Revolution were Jews is documented beyond any possibility of dispute. In 1919, the United States government, through the Overman Committee, investigated the causes of the Russian revolution.
The following are the selected extracts from each testimony - much abridged from their original which can be found and read in full from the official congress records here:
https://archive.org/stream/bolshevikpropag00judigoog/bolshevikpropag00judigoog_djvu.txt
https://emahiser.christogenea.org/sites/default/files/Judaism%20In%20Action%2C%20Book.pdf
https://www.chinhnghia.com/Griffin-DescentIntoSlavery1980.pdf
Dr.George A. Simons,
William Chapin Huntington
Testimony of Mr. William W. Welsh
Testimony of Roger E. Simmons
Testimony of an Anonymous Witness
Testimony of Theodor Kryshtofovich