I have my own theory about the Miers nomination. It seems like it was set up to fail from the start.
It's almost like the Democrats have been itching for a fight against a SC nomination. That they were like sharks circling and waiting for their prey.
So Bush gave them some, in the form of Harriet Miers.
Not to diminish her legal skills and knowledge, but what I've read of her bio doesn't suggest a strong Constitutional scholar.
Of course, he also upset the far right in the process.
Miers is nominated with the intention that she will either not be confirmed or will end up withdrawing her nomination before the hearings. The Democrats have fought back and won, but like Ali and the rope-a-dope, Bush fights back harder with his counterpunch.
Of course, I could be waaaaay off on this theory.