Yes, Bush tried it once. It was a conservative blogger (don’t remember his name). The media had a hissy fit and his press pass was revoked.
Some pigs are more equal than others.
James Dale Guckert, aka "Jeff Gannon."
Wikipedia Entry for Jeff Gannon.
In addition to describing Mr. Gannon/Guckert's interaction with the Bush WH press organ, the Wiki article is interesting for its description of the restrictions on access to the formal propaganda fabrication process.