John Fund has a long piece in the Opinion Journal on the vetting process or lack thereof for the nomination of Harriet Miers. It kind of reminds me how the Bay of Pigs is used as the classic example of group think mentality.
Regardless of whether or not the vetting process was complete, it presented impossible conflicts of interest. Consider the position that Mr. Bush and Mr. Card put Mr. Kelley in. He would be a leading candidate to become White House counsel if Ms. Miers was promoted. He had an interest in not going against his earlier recommendation of her for the Supreme Court, or in angering President Bush, Ms. Miers's close friend. As journalist Jonathan Larsen has pointed out he also might not have wanted to "bring to light negative information that could torpedo her nomination, keeping her in the very job where she would be best positioned to punish Kelley were she to discover his role in vetting her."