How old IS this shit? "The last three elections" and the graph goes to 2012? The latest date even cited is 2014, so that puts it nearly a decade behind... Opensecrets.org might want to get a few more interns and maybe move the office to a building with windows.
I clearly added the year the data goes to, in the title. "(2016)"
Without data showing the developments post-Drumpf, this is pretty sus, NGL.
There's a lot more blue on that graph now
Which graph, exactly, and where are you getting your facts?
More reputable sources than darkmoney.org, a site that lists no other sources and begs for money on every page.
https://www.cnn.com/2020/11/27/politics/dark-money-democrats-joe-biden/index.html
https://www.theatlantic.com/politics/archive/2021/11/arabella-advisors-money-democrats/620553/
Here's three, and here's one from your supposed "source"
https://www.opensecrets.org/news/2021/03/one-billion-dark-money-2020-electioncycle/