Seriously, garbage in and out is all you do. Are you trying to say that yes they did but it was not much?
Do you understand that the purpose of the investigation is TO ESTABLISH PROOF OF THEIR INTERFERENCE (or not)?
Well first you start with evidence that rightly raises suspicion. If the evidence justifies suspicion, only then you open expensive investigation to find proof that can put someone behind bars.
The House investigators keep asking, what evidence do you have that justifies opening this expensive investigation?
I'm not saying the Russians are biased, but that's the most evidence anyone has at this point, if they even have evidence. But there is no evidence that Russia even had a bias, with as many indications for Trump as against Trump.
Nor has there been evidence of bias connected to Russian officials representing the Russian government.
Do you think bias is good enough reason to open an expensive investigation?