It is not untrue.
http://quest.cjonline.com/stories/121100/sup_1211007337.shtml
"George W. Bush pointed to Antonin Scalia and Clarence Thomas as role models for appointments"
When you are on the campaign trail and you make statements like Bush did, that is called a campaign promise.
Bush promised a Scalia and Thomas, he nominated the Church Lady.
Is that your line, or someone else's? I read it earlier today somewhere, but you didn't credit anyone else - so I was wondering.
Or to use another analogy, Bush was pitching an 80's action movie to investors and promised sylvester stallone, and after he got the money he cast frank stallone.
Now, frank stallone may be able to play the role just as well as sylvester stallone, but he's an uknown, and that's upsetting to the investors. They want a sure return on their investment, not a crap shot.
That, simply, is why many are upset. But people will take that as an attack on the President and the party.
That's debatable.
For the sake of argument even if he did actually say I promise my nominations will be in the mold of S/T He has not renegged for all you and I know and Thomas was certainly no more known than is Miers when he was nominated.