Obama: "Mental distress" doesn't justify late-term abortion

From the AP:

WASHINGTON (AP) - Democratic presidential candidate Barack Obama says "mental distress" should not qualify as a health exception for late term-abortions, a key distinction not embraced by many supporters of abortion rights.

In an interview this week with "Relevant," a Christian magazine, Obama said prohibitions on late-term abortions must contain "a strict, well defined exception for the health of the mother."

Obama then added: "Now, I don't think that 'mental distress' qualifies as the health of the mother. I think it has to be a serious physical issue that arises in pregnancy, where there are real, significant problems to the mother carrying that child to term."

That's a very interesting- and very welcome - pronouncement, but it just happens to fly in the face of what Obama's favorite Supreme Court justices have said on the subject and it also stands in complete contradiction to his own voting record. What gives?