The 186 million sum seemed fishy. Seems to revolve around one person.
Did some digging and and found this character:
Tom Steyer
The New York Times reported on January 8, 2018 that Steyer pledged to spend $30 million to get Democrats elected to Congress with the aim of impeaching President Donald Trump.
Steyer used his fortune to become a high-dollar Obama bundler in 2008, urging campaign leaders to persuade candidate Obama to include global warming in his speeches.
Sauce:
https://en.wikipedia.org/wiki/Tom_Steyer
OpenSecrets.org
http://leftexposed.org/2018/01/tom-steyer/