There is no mystery as to why trump has ordered the release of classified data about the Russian investigation: PUTIN TOLD HIM TO DO IT!
Putin doesn't like it because it is effective.
It's the same reason Putin told Tillerson to fire all the State Department staffers who were coordinating NATO responses to Russian threats - they were good at their job.
There is a common thread to all this stuff: the weakening of United States intelligence gathering - as well as weakening any US active interference with Putin and the other Russian thugs' plans.
trump is a Russian asset.
The proof -
The scientific evidence for this assertion is based on the Duck Codicil to Occam's Razor. As you know, Occam holds that when presented with differing explanations for a phenomenon, the simplest explanation is the most likely to be true.
The Duck Codicil, antecedents unknown, holds that if an outcome has three or more consistencies with an hypothesis for its cause, then it is likely that the hypothesis is correct. The Codicil is useful especially where experimentation is not possible.
More colloquially, 'If it swims like a duck, quacks like a duck, eats like a duck and shits like a duck, then it is a duck.'