I was taking a gander over at the Wikipedia aggregate rankings of presidents and I noticed that Richard Nixon as next to the like of Hoover, Coolidge and Bush II. I understand why he would be rated at that level, Watergate being the biggest presidential scandal in history, I am wondering whether his many foreign and domestic accomplishments (China, EPA, SALT, OSHA etc.) make him deserving of better.

I realize this is used as one of the examples in the question guide but as far as I can tell it hasn't actually been asked yet. If I am mistaken, my apologies.