I think this is likely.
Unless we have more than a one-vote majority, can't Specter still block them in committee by voting with the Rats?
Specter can rig the committee process in favor of the feminists, environmentalist, homosexual etc.. organizations that can use the hearings to rally their members to put pressure on Senators to vote no while using the publicity to increase membership and raise contributions for use in other battles.
After weeks of headline electronic lynching Specter can send the nominee to the floor with a recommendation from the committee that he be rejected.
Specter is a weasel. A stupid weasel who shot his mouth off too soon, but still a weasel.