Heh heh, yes, that would be a perfect snare for the snake McCabe. He would have to testify or else give up his job. Of course, if he may know he’s doomed anyway (in the future) then he definitely won’t appear.... we don’t know what may or may not have occurred to date between him and Wray or him and Sessions/Rosenstein.
That’s the thing still not sure which side some will come down in the end, but getting clearer every hour.