At the Washington Post, Dana Milbank suggests that the Alito nomination may boil down (weirdly enough) to Alito's role in the Concerned Alumni of Princeton:

Thus did Democrats take their last stand against Alito. It had become clear that the committee, with unified GOP support, would clear the judge. Surveying the various lines of attack against Alito -- his opposition to abortion, his support for a powerful president, his conflict-of-interest issues -- Democrats concluded that their best hope was in Alito's membership in a group opposed to gains by women and minorities. Clarence Thomas had Anita Hill. Alito would have the Concerned Alumni of Princeton.

Meanwhile, over at Bench Memos, Ed Whelan reports:

I have been informed by a very reliable source that Senate Judiciary Committee staffers have reviewed the entirety of William Rusher's CAP documents at the Library of Congress and have determined that those documents make no mention at all of Alito.

  UPDATE: I added the Milbank commentary after posting Whelan's news.