Another reason the Demonrats would want to attack Cain now: Once Cain is nominated, his rivals in the GOP will no longer have much motive for attacking him themselves. By attacking him now, they get at least veiled help from the rivals (notice how Mitt, Gingrich, et al. were lecturing Cain on how “these were serious allegations and he needed to get everything in the open ASAP?). Also, once he is the nominee, he will have access to more resources to fight the smears. Right now, he’s using his own funds.
Yes. See getitright post @ 44