They are left either arguing, preposterously, that Clinton's crimes are just as bad as Nixon's or claiming that Nixon's crimes far exceeded the threshold for impeachable offenses and shouldn't be the standard for judging Clinton's.
They agree that Nixon was clearly worse and is a standard for judging Clinton.
mnli hypothesis: They agree that Nixon was clearly worse and is a standard for judging Clinton. premise: They are left either arguing, preposterously, that Clinton's crimes are just as bad as Nixon's or claiming that Nixon's crimes far exceeded the threshold for impeachable offenses and shouldn't be the standard for judging Clinton's.