I happen to think that accepting money from foreign governments to support one's political aspirations already has a word to describe it; TREASON.
True story; my old landlord in Arkansas was a guy named Charlie Ya Lin Trie. I knew he was connected, but after I left the state (I was growing the whole time) I heard about his indictment- for funneling money from the Communist Chinese to the fucking Democratic National Committee! Surely some of that money helped elect Mr. Bill, the Clinton.
This is absolutely destructive to any idea of democracy.