I've been wondering for quite some time just how much of Bob Mueller's investigation into the President and Russian collusion is a meticulously produced example

I've been wondering for quite some time just how much of Bob Mueller's investigation into the President and Russian collusion is a meticulously produced example of parallel construction. I'm not saying Trump and his people are innocent or that there's no Russian involvement, I just think it's highly unlikely that the set of evidence that we will see in these cases was obtained or produced with the publicized methods.