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Note 1: The press largely knows what Congressional investigators know because Congress leaks & Mueller's team doesn't. 2: Congress hasn't really issued subpoenas. 3: Because of #1, Mueller's team shares very little with Congress because sharing w/Congress is akin to leaking.
I don't think it's a matter of sharing or not. I think it's a matter of Mueller letting Congress be distracted and issue inadequate requests. https://www.emptywheel.net/2017/12/28/chuck-johnsons-narrowed-scope-of-what-a-russian-is/ … https://www.emptywheel.net/2017/11/18/abbe-lowell-reveals-the-complete-inadequacy-of-the-intelligence-committee-russian-investigations/ … There's no Preet equivalent on these committees.
