Former New York City Mayor Michael Bloomberg donated about $50 million recently to the nonprofit arm of the largest super PAC supporting Vice President Kamala Harris, according to a report.

Bloomberg, who Forbes ranks as the 15th wealthiest person in the world, gave the money to Future Forward USA Action after pressure from the likes of Bill Gates and LinkedIn co-founder Reid Hoffman, the New York Times reported. The organization, which is registered under a section of the IRS code called 501(c)(4) that allows it to hide its donors, is affiliated with the Future Forward super PAC that is dropping historic sums to support Harris in the election through digital advertising.