Joe Biden today waded into the now-sensitive discussion of developmentally disabled kids, my colleague Victoria McGrane reports, and differed with Palin on the issue, though he didn't mention her by name:

I hear all this talk about how the Republicans are going to work in dealing with parents who have both the joy, because there's joy to it as well, the joy and the difficulty of raising a child who has a developmental disability, who were born with a birth defect. Well guess what folks? If you care about it, why don't you support stem cell research?