The problem a president has with any court nominee is transparency. Until your choice actually begins ruling on cases, you can never be sure he or she was what you imagined them to be. By that time, as we know, it’s too late. As these are lifetime appointments, he and we are stuck with them, many times suffering disastrous consequences of a wrong choice.
Recent history is replete with Republican “wrong” choices, from David Souter to John Paul Stevens, Sandra Day O’Connor and, of course, Mr. swing-vote, Anthony Kennedy.