They think this is Watergate 2.
Well they shouldn’t get too excited if this story is true: https://medium.com/@rossdaniels/breaking-john-roberts-white-house-source-george-papadopoulos-evidence-provided-by-the-white-house-630eae043b6e
“It appears that the Papadopoulos emails quoted in the Mueller filing were all turned over to the Senate and House Intelligence Committees. One of those emails showed that then-campaign manager Paul Manafort shot down the idea of a Russia-campaign meeting.”
http://www.washingtontimes.com/news/2017/oct/30/george-papadopoulos-sought-dirt-on-hillary-in-hop/