I think President Trump wants to catch the Obama administration holdovers destroying evidence. He’s giving the rats enough rope to hang themselves. Plus I think he wants to nail Schumer and Pelosi if he can tie them to the Russians.
There is one catch. It is very difficult or even impossible for classified information to be destroyed.
I think Trump only has to do a few things and it appears he started -
1. Demand a list of every single person in each agency who had access to the FISA requests that appear to have been made. He has this one covered.
2. Interview the affiant or person who wrote/swore to the affidavit(s) with copies of the affidavits in front of them. Who, what, where, when, and why did you write this and who was the source of that information. Who asked you to prepare this. Etc. Etc.
This is the place to start, but 3 is equally important moving forward.....
3. After evaluating the potential leakers demand that each of them submit to an interview followed by a polygraph regarding leaks of classified information and/or contact with media or democratic operatives. Security clearances are granted with a caveat that the person is subject to a polygraph exam.
This would go a very long way towards plugging the leaks moving forward and put people on notice that it will not be tolerated because prosecutions should follow.
At the rate the GOP has investigated stuff in the past 8 years he simply cannot wait for them to complete their investigation. The news in the past 72 hours alone would take a GOP led congressional committee 16 years to investigate. I am serious. They are ridiculously slow and largely weak and ineffective in the face of stupid democratic opposition and delaying tactics.