Bill Gates, one of the richest men in the world, privately said that he recently had donated about $50 million to a nonprofit organization that supports Kamala Harris’ presidential campaign, reports The New York Times. The Microsoft founder did this after decades of abstaining from politics. The donations were supposed to remain secret. Gates has not publicly supported Harris, and his donation will be a significant change in the strategy that has previously kept him from making such gifts. In private conversations with friends, Gates has expressed concern about what a second Donald Trump presi…