I don't know if you're old enough to remember, but Fred Thompson made his bones on Nixon during Watergate. Nixon self-destructed. He would have been successfully impeached and left office only when Republicans told they too would vote for impeachment. Yes, Nixon had enemies. Even paranoids have enemies. But his worst enemy was his own paranoia.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Report: Nixon feared Israeli nukes would spur arms race