Bill Gates has privately donated $50 million to support Kamala Harris' presidential run, according to a report by The New York Times. Although Gates did not directly endorse Harris, the donation was made through a non-profit organization supporting her campaign. Gates stated that he decided to get involved in the election due to its significance for Americans and vulnerable people worldwide.

Source: https://www.wionews.com/world/bill-gates-backs-kamala-harris-by-secretly-donating-50-million-for-her-presidential-run-report-769917