Past history would say 'probably not'. Aiken is a walking, talking sound-bite for his opponents. In the past his verbal gaffs haven't harmed him in his races in an overwhelmingly conservative district. But McCaskill was running ads based on Aiken quotes before the rape comment. There is no reason to doubt that Aiken will provide her with more quotes over the remainder of the campaign.
Bad form NOOBIE. You joined 8/4/12, your advice regarding Akin is suspect and unwelcome!
McCaskill was well behind before the rape comment. Akin's polls took a dive after the rape comment, but then recovered. More likely than not, Missouri will turn out to be more conservative in 2012 than either McCaskill or the GOP-e expects. And the latter need to STFU and get behind him!
BTW, it's Akin, D-MO, not (the late) George Aiken, R-VT. However, you did better than Mark Levin, who last Friday opined in support of that Atkins guy in Missouri.