"the nadir of his presidency"

What represents the rock-bottom of George W. Bush's tenure so far?

You can have three guesses--or 3,000--and I bet you'll never figure out what Daniel Pipes says it is:

Awarding of the Presidential Medal of Freedom to Muhammad Ali gratuitously celebrated a man profoundly opposed to Mr. Bush's own, his party's, and the country's principles.

Despite the hyperbole, this is a very interesting article (and I say that as someone who finds Ali an immensely interesting and on the whole positive figure in American society--even if he did kind of take a dive against Superman). Whole story here (via the great History News Network).