Because of the magazine’s rather biased (in favor of) coverage of Barack Obama.

I don’t blame McCain one bit, and frankly I wish more politicians would do this sort of thing.  An independent media is important because it is our first line of defense against overbearing, power-hungry politicians.  But the media has become overbearing and power-hungry and and of itself, and I think many of these reporters need to be reminded from time to time that the politicians are in charge, not them.

They exist for no other reason than to tell us what the politicians are doing.  Not to influence what the politicians are doing, or even influence what we the public think about the politicians.