You can bet your a$$ and the bank that Soros is in the middle of this.
There are many players in the world, each with their own interests and ambitions. Everything does not reduce into one conspiracy. The game is much more complex than that.
The effects of foreign corruption situations, on the part of foreign countries on domestic US politics is, usually, incidental. These countries are trying to buy influence with US persons or groups that they perceive as holding power.