That is because bishops follow Scripture and will talk to some PRIVATELY before making it public.
If she does not get this cabinet position, who ever takes her place will be just as bad on the issue, but not as harmful to Obama.
Highly unlikely, there are very few people at this level who are anywhere near as militantly pro-abortion as Sebelius, Daschle certainly wasn't.
As governor, Sebelius has systematically ignored the law and promoted abortion as much as possible, at HHS she will push her policies nationwide.