The word has gotten out to the general public about Planned Parenthood's grisly practices. I don't think a veto is a sure thing. If he does veto it he's going to further brand the Democrats as the Party of Baby Parts. I don't think the Dems want to go there in an election season.
What he will probably do is make some sort of statement about the "intolerant" Republicans, but let it slide.
Well that would work if the Republicans have the guts to actually say that the dems and especially Obama (a father of two) think there is nothing wrong with crushing baby skulls and selling body parts. They must pin this on them now but I’m not holding my breath.