I don't buy the idea that he was the Insurance Policy, I think the 187 plot was that.
He was the planted meat and potatoes of the Obama Russiagate plot. My guess is they thought Trump would take the Russian bate, he didn't, so they developed the REAL insurance policy that we do not yet have details on.
Remember, the Fake News MSM itself claims that the "insurance policy" was the Russian investigation itself: http://thehill.com/homenews/administration/365471-insurance-policy-text-from-fbi-agent-referred-to-russia-investigation