I think that was Asha Rangappa. I follow her on Twitter. She’s quite good, but I think she hesitates and balks at times at following through on the logical conclusion of where all of Trump’s actions and state of mind lead.
I don’t think Mueller is looking at a report to Congress, though he most certainly will file one and Congress will ask for it. Mueller, imho, is pursuing an indictment strategy, not an impeachment referral strategy. He doesn’t think these crimes are benign or go to political or moral standards. It’s about legal standards and the courts decide that. Impeachment, at the end of the day, is just a fancy term for ousting the CEO. There’s no criminal punishment involved. So even if Trump were impeached and removed from office, that would still be an inadequate remedy for crimes of conspiracy, crimes of concealment, bribery, RICO etc. You’d want jail for something like that. Impeachment doesn’t really speak to it. That’s why Mueller is pushing hard. He’s trying to prove that this was a criminal conspiracy and anyone who participated in it is guilty and should be punished under the law just as if this were a standard drug ring.