There are money trails for all this work and the foreign transactions. All of them.
Did The Inspector Generals Office Help The Whistleblower Try To Frame Trump?
The whistleblower was not acting alone, and members of the intelligence community inspector generals office were likely providing an assist in the hoax attempt to bury President Trump`
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I skimmed the article - no time at the moment - seems like a good article about the changes, but no evidence as to WHO helped/assisted. It has been noted that the whistleblower complaint [sic] was written or assisted by a lawyer.
So until something is made public, no one knows WHO did this. Well, some people know but not us and not the writer.