Form the Boston Globe:

Bruce Fein, an attorney and former Reagan administration aide who opposes Miers’s nomination, said he thinks Miers is vulnerable to close questioning on Supreme Court cases. He predicted that it would be easy for senators to ”make a fool of Miers” by marching through constitutional cases and asking her to explain.
”If there is an intent to show that she just knows none of these things, I think they’ll have to recess and see if there is a gracious way for her to withdraw,” said Fein, who helped prepare Justice Sandra Day O’Connor for her confirmation hearing in 1981. ”I just can’t imagine a nomination where a candidate is unable to answer 40 questions that someone with a reasonable immersion in constitutional history would have on the tip of their tongue. The Supreme Court isn’t for on-the-job training.”</blockquote