I gotta say, I have been continually mystified that President Bush keeps bringing this issue back up. It seems to me he gains nothing politically by it (since anyone who even remotely supports this ridiculous notion would vote for him anyway), and loses a certain amount of support among moderates and (particularly) homosexuals.
Even if a person is opposed to gay marriage (which I'm not), this would be a clear misapplication of the amendment process IMO, and to me it trivializes the real importance of the Constitution and Bill of Rights.
To his credit, this is obviously an issue with real, personal importance to the President, and part of me appreciates that he is doing this out of his own convictions, rather than political expediency. I respect that sincerity.
That said, I think it's an offensive, laughably stupid idea, and it seriously makes me wonder what kinds of gems the White House will come up with if President Bush is elected to a second term, and no longer has to worry about being re-elected.