The more I think about it,the more certain I become that the whistle blower is someone Schiff and his fellow Dims found that MIGHT have gotten close enough to Trump to have heard SOMETHING,but actually didn't hear and doesn't know a damn thing.
I also suspect the Dims have him or her locked away in a motel room somewhere,with DNC staff briefing him or her on what they are supposed to have heard.
I am also convinced the plan is to not have him or her exposed to the public and to not hold any hearings or briefing about what MAY have been said until shortly before the elections.
It boils down to this. The Dims KNOW they can't win unless they pull off something drastic at the last minute,and this is at least one of their plans to save their careers.
Once the election is over,it won't matter to them if the whistle blower lives or dies because by then their goals have even been reached or they haven't.
Dim Dirty Tricks.
Trump seems to understand this,and it looks like he is going to keep hounding them and demanding they produce the so-called whistle blowing so they can be questioned by him and the press. In short,he is screwing with them because the Dim leadership KNOWS that if he is out there every day demanding the whistle blower come public and explain what they saw and heard that sooner or later someone in the press is going to start demanding they bring him forward too,and once one does this,you can be sure the other media outlets will start howling about it,too.