is simply one avenue of inquiry.

two entirely separate matters. One is an inquiry into the how of things, the other is conjecture as to the why.

If the president were not involved, if an ordinary citizen were the subject of the inquiry ... this case would simply not be given serious consideration for prosecution, ... It wouldn't get in the door. It would be declined out of hand.

We're working every avenue we can.

Avenue Q

Another inquiry isn't going to do anything.