In 2013, Biden had a Jewish Sukkah built at his home, by CHABAD
https://obamawhitehouse.archives.gov/realitycheck/blog/2013/09/25/first-vice-presidential-sukkah
"On the holiday of Sukkot, Jewish people spend time in the sukkah."
https://chabad.org/library/article_cdo/aid/609535/jewish/What-Is-a-Sukkah.htm
The Code of Jewish Law clearly states that a child of a Jewish mother is Jewish, regardless of the father’s lineage (or whatever else may show up in a DNA test), while the child of a non-Jewish mother is not Jewish.1 Matrilineal descent has been a fundamental principle of Torah since the Jewish people came into existence.
https://www.chabad.org/library/article_cdo/aid/601092/jewish/Why-Is-Jewishness-Matrilineal.htm
Interesting. In Germany, Nazi's were the right and communists were the left.
Werner Scholem, the Jewish political figure who, during the period of the Weimar Republic, served in the Reichstag and headed the country's Communist Party.
The KKK was financed from England by the Jewish former Secretary of State for the Confederacy, Benjamin P. Judah.