Does a second term corrupt absolutely?

** Interesting observation in a truthout.org article.

If despair and despondency still color your world after the election, remember this: Every second-term President since Eisenhower has met with a blizzard of shame and disgrace before they left office. Nixon didn't get to finish his term and needed Ford to keep him out of prison, Reagan needed Bush Sr. to pardon a whole mob of cretins to kill the Iran/Contra scandal, and Clinton was impeached for lying about consensual sex.