Out of the top 27 donors to the 2020 US general election, 17 were Jewish.
Sources:
OpenSecrets.org: “Who are the Biggest Donors?”
“Meet the top 15 Jewish political donors in this election cycle” - Jewish Telegraphic Agency (September 24, 2020; the list has since changed, and this InfoTable has been made using the latest available data.)
#193 Sheldon Adelson
#292 Michael Bloomberg
Thomas Steyer - Wikipedia
#364 Dustin Moskovitz
Stephen Schwarman - Wikipedia
Jeffrey Yass - Wikipedia
#209 James Simons
S. Donald Sussman - Wikipedia
Bernard Marcus - Wikipedia
Laura Perlmutter (Jewish Husband: Isaac Perlmutter])
Joshua Bekenstein (Refer to source linked at top from JTA to confirm Judaism)
Deborah Simon (Refer to source linked at top from JTA to confirm Judaism)
Stephen Frank Jr. Mandel (Refer to source linked at top from JTA to confirm Judaism)
Stephen Wynn - Wikipedia
Henry Laufer - Wikipedia
#346 Reid Hoffman
#219 Paul Singer