<Just look at the dates on the first few signatures in the FBI dump. Those are just the first couple examples. All the other dates in there are Oct. '16- Jun. 17'. The fact that the different phases of the investigation were COMPLETE at/before the dates signed for shows how long they knew about it- When was it public? 2017. If the FBI was really investigating this guy for something that happened in June 2016, and signed the official docs affirming their findings, starting in October 2016, for something regarding the ELECTION…. why did the Senate only push a subpoena in Oct '17?
I'm going to disagree with your assessment that 'different phases of the investigation were complete'. Each re-submission was an extension of time allowed to investigate and see what connections can be made under the assumption Carter Page was a foreign agent.
I agree with your assessment, there are a lot of unknowns. Little by little the truth is seeing daylight.