Rachel Madow in her MSNBC show Thursday, May 11, speculated that either Mike Flynn or Paul Manfort could be "flipped" by the FBI to become witnesses of any of Trump's collusion with Russia during the campaign.. They would be in a position to know if such happened.
James Clapper on Jake Tapper's interview Sunday, May 24: "our instutions are under assault by Trump", referring also to checks and balances, and he said he did not even know the FBI had an investigation into the Russian connection or campaign collusion in 2016 until FBI Director Comey verified it before the House committee March 22. In his position of DNI, the focus was not on that issue so he could not attest to whether it was true or not.
Since so much of the news reports about Watergate dribbled out for 2 and a half years, as I lived through those times, I did not fully grasp the significance of the scandal untill I put it all together by reading the book All the President's Men by the investigative reporters who blew upen and reported it. The movie based on the book I found to be a very accurate recounting as desribed in the book by the same name, For those who want a greater understanding, required reading would be the book,