Thinking about the timing of Nunnes presser and his release of information only he knew about is kind of strange.
My humble conclusion....He threw himself under the bus for Trump because Trump stated that he will be providing evidence on the wiretapping by Obama. HE HAS NO EVIDENCE. So Nunnes is diverting the inquiry and attention away from Trump's statement that he will be providing evidence. Two words...Great Move!
Now it's time for Nunnes to be replaced but his visit with Paul Ryan was to get assurances from Ryan that he won't be removed by Ryan for this unprecedented release of information that was given to him by a FBI briefing. At least we know who can be trusted.  This may be a great example of how Trump will leak stuff to his advantage...like his 2005 tax returns. Why would anyone want to leak 2 pages of this old  2005 tax return? Committee now looking to subpoena his more recent tax returns.  Man is just digging his hole deeper.