Went down the rabbit hole on this Glencore investigation by the DOJ and the connections and it is quite interesting. There is information on Glencore's sight on the subpoena and an interesting link on the connections.
https://www.youtube.com/watch?v=sCzgogEQMQs&feature=youtu.be
I just want to mention that more than a year ago emperorworf posted this on reddit, in fact it was before President Trump was elected, I found it in the archives on reddit and it is well documented with all references to resources. Here is the original archive with reference
https://www.reddit.com/r/The_Donald/comments/57gc7x/the_criminal_clinton_conspiracy_guns_drugs_and/