The problem with people from the Democratic party is some believe in a fantasy known as renewable energy.

If God had intended us to gather free energy in the form of solar, wind, geothermal, or tidal then he wouldn't have killed the dinosaurs off so we can suck up their death juices millions of years later and use a complex and dirty process to convert it into energy.

So the fact that dinosaurs existed pretty much disproves most of the liberal and leftist belief system. If you don't believe me, just ask you local fascist paleontologist!

Who is the equivalent to the Koch brothers in the Democrats?

There's corruption, I just don't know who could be compared to the Koch brothers. Like if you look at what they fund, their reach (and as a result, fossil fuel interest) is in just about every well known Republican organization.

https://www.sourcewatch.org/index.php?title=Koch_Brothers