"While nobody thinks that rape is ever "legitimate," plenty of Republicans—including e.g. a majority of the House Republican caucus in a series of votes in spring 2011 on amendments sponsored by Rep. Chris Smith of New Jersey—have distinguished between cases of "forcible rape" (where abortion ought to be allowed) and other forms of rape, where they are not so sure," – David Frum.
That strikes me as a useful avenue for Democrats to explore further.
The Dish 