Originally, many in the Repub. Party decided to cut him loose--no endorsements, no dollars, etc. (Much as Democrats treated Martha Coakley when she ran against Scott Brown, now that I think about it, though, after the fact, the DNC denied having cut her loose.)
But, they apparently have reconsidered now. Romney's dim prospects for gaining the Oval Office may have something to do with that. So, they are funding Akin now. How many of them will want to associate their faces with his is yet to be determined.
I don't know whether they are funding him because they consider him viable or because they hope funding will make him viable. Perhaps that is a distinction without a difference, though.
There was a time, say 1919 C.E., when women of both Parties would definitely have voted for McCaskill under these circumstance. But, Democrats have for decades let evangelicals teach people that Jesus wants everyone to vote Republican and wants women to submit to their husbands in all things without offering any different view.
Aargggh.
In all honesty, I think the last thing the President and the DNC wants is a real Democratic majority. I don't mean your fake Democratic majority like in 2008, I mean a real Democratic majority where they would have to reform the election process and rein in Wall Street and the military industrial complex.
That's fair and, I think, very true. However, they are in no danger whatever of a majority of real Democrats in Congress. Right now, I cannot think of a single Democratic Senator I would put in that category any longer and Progressive Caucus has gone from over 100 members in 2006 to around 70 now and even its members end up voting neoliberal. Moreover, many of them are aging out or redistricted out. (I used to make a possible exception for Franken, but then he knocked me for a loop by voting against food stamps.)
So, I think that the very last thing they want is any kind of Democratic majority, especially a sixty vote Senate caucus majority. Either would make it harder to explain certain things away with "Republican obstructionism."