This story, much in the news, reminds me of this quote:
"When freedom does not have a purpose, when it does not wish to know anything about the rule of law engraved in the hearts of men and women, when it does not listen to the voice of conscience, it turns against humanity and society." (John Paul PP. II)
Crimes committed in thought and word, to say nothing of deed, even in the name of the president of the United States, are still crimes. There is no such think as an "excessive" sentence for those who abuse the public trust and obstruct the people's justice.
At least Richard Nixon had the good sense and the good grace to resign.