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://www.chabad.org/library/article_cdo/aid/609535/jewish/What-Is-a-Sukkah.htm