With all due respect, I don’t think Will has said any such thing. He is a Pawlenty guy for the moment but given his positions in the past and most recently I doubt if he would vote for Obama at all. But I’m sure he will have the courage of his convictions to endorse someone when the time comes.
However, let's revisit what he did state:
“The threshold question, not usually asked, but it’s in everyone’s mind in a presidential election. ‘Should we give this person nuclear weapons?’ And the answer [in Palin's case], answers itself.”
If Will felt the same way about Obama he surely would have expressed that view by now. Will has never said anything similar about Obama.
If Will truly believes what he said about Palin I would think he would no choice but to vote for Obama if the alternative was Palin.