Around the time that more Russia election meddling stories were breaking, a friend (probably now identified as a Russian bot for his views) sent me a link to a video put out by AIPAC on the importance of bipartisanship for ensuring that the US maintains a favourable stance. [0]

Of course, this is a fully legal way to influence the US political system. Sure, it costs a fair bit, but it doesn't matter who's in power. I was impressed by how unobfuscated the video's message was.

[0] https://www.youtube.com/watch?v=tvFYn9RbYlc