I didn't clean it up; it got voted down.

As I suspected, your cite was so decontextualized as to be misleading, and the full quote supports my assertion:

<<According to the landmark ruling Roe v. Wade, any restriction on abortion must include an exception to protect the health of the mother, both physical and mental. A number of lower courts ruled the partial-birth ban was unconstitutional because it did not do that. President Bill Clinton also vetoed the measure twice. But, in a move that one liberal justice called "alarming," the Supreme Court ruled the health exception was not needed in this case. It said there were questions about the safety of a D&X procedure and that there are alternative ways to terminate a pregnancy.>>

Note: "A number of lower courts ruled the partial-birth ban was unconstitutional because it did not do that [include a health exception]."

That is why Hillary voted against it. No health exception.