No, but he has paid for at least 2 million dollars worth of influence, so, in a roundabout way, --- YES...
Same for Craig Newmark, (Craigslist) (big supporter of both Obama and Biden), to the tune of at least 2.5 million...
As does Jeff Bezos, (Amazon, Washington Post) (on-going feud with the 'Don' ) a measly 1 million...
Also, Peter Baldwin, Lisbet Rausing, most recently 3.5 million, previously (2017) 5 million...
https://wikimediafoundation.org/news/2018/10/15/george-soros-invests-future-free-open-knowledge/