We all know jumping straight into research without context is difficult, especially since some people here have been researching for years.
Hopefully this thread can be used to get people up to speed and get those questions answered by our more knowledgeable users.
I actively follow Dan Bongino for Spygate updates. He's former Secret Service agent, NYPD, and he ran for Congress in Maryland, so he's pretty we versed in law and the political system.
This is a viral video he did about SpyGate and will get you started. There have been a number of significant updated since then and I can follow up on specific points if you have questions.