Pretty sure even senate repubs would vote to remove for that. Which would signal political unity on the subject.

As was the case with Nixon, when Goldwater himself went to the repub pres and told him the jig was up, because there was broad bipartisan consensus that he committed an impeachable offense - spying on an electoral opponent and covering it up.

In the case of Clinton, I don't think anybody disputed that he committed a crime by lying under oath. Only one side of the aisle saw that as impeachable. There was no political consensus, and therefore, removal didn't happen.

And now Trump - if Mueller spelled out evidence of a quid pro quo between the Russians who interfered in 2016 and Trump or even only his campaign, we might be looking at a very different situation in terms of political consensus. The report says definitively that no such evidence was found, and does not say that any efforts to obstruct succeeded in preventing a thorough investigation. Thus, we are in a position where some, not all, dems want to impeach, no repubs do, and impeachment would be a completely partisan operation.

In all three cases, the question of how to address the violations of law that occurred in each case (except perhaps in Trump's, according the Mueller report, which declined to conclude about that) were (or will be, as Trump's is still pending) answered politically, which is exactly how the framers designed it to be.

If the dems do the smart political thing here, and don't impeach, the impeachment clause of the Constitution emerges intact and unharmed.