Even these workers think McCain attacks are going too far: http://tpmelectioncentral.talkingpointsmemo.com/2008/10/dozens_of_call_center_workers.php And this is in Indiana. McCain is losing fast.
If the only thing McCain has to offer are attack ads, calling the other candidate terrorist etc.. instead of letting potential voters what solution you bring to the table then that usually means they have nothing good to offer.