Kamala Harris allies weighing how they could build a campaign if Biden exits  NBC NewsHarris Struggles to Reassure Major Democratic Donors  The New York TimesVP Kamala Harris and Democratic donors discuss ‘urgent, emerging needs’ in the race, with Biden campaign in crisis  CNBCKamala Harris to make snap call to donors as top Democrats urge Biden to go  New York Post Harris tries to calm jittery donors  POLITICO