Michael Bloomberg, the former New York City mayor, gave the most to charitable causes last year, followed by Nike co-founder Phil Knight and his wife, Penny, and Michael Dell and his wife, Susan, according to the Chronicle of Philanthropy’s exclusive list of the 50 Americans who donated the largest sums to nonprofits last year. Is it too late to invest in Nvidia? | Smart Investing CC Share Subtitles Off English view video Is it too late to invest in Nvidia? | Smart Investing Bloomberg contributed $3 billion to support the arts, education, environment, public health, and programs aimed at improving...