Campaign fundraising expert: ‘fairly catastrophic’ for Biden if donations dry up Fox BusinessLive Election Updates: Donors Said to Freeze Roughly $90 Million as Long as Biden Stays in Race The New York TimesBiden’s brutal week ends with deluge of calls to quit and donors holding $90 million hostage The IndependentDemocratic donors freeze $90m in donations as long as Biden is at top of the ticket The IndependentTech billionaire Mark Pincus joins donor push to force out Joe Biden Financial Times