https://www.nytimes.com/2019/03/28/magazine/battle-over-bds-israel-palestinians-antisemitism.html
"Despite pointed critiques of American support for Israel by representatives like Betty McCollum of Minnesota, Tlaib and Omar, there is little willingness among Democrats to argue publicly for substantially changing longstanding policy toward Israel. In part, some Hill staff members and former White House officials say, this is because of the influence of megadonors: Of the dozens of personal checks greater than $500,000 made out to the largest PAC for Democrats in 2018, the Senate Majority PAC, around three-fourths were written by Jewish donors."