The abortion factor: As I noted in Friday’s Spin, Biden flip-flopped last week on his support of the Hyde Amendment, which bans government health programs such as Medicaid, from covering abortion expenses except to save a woman’s life, and in cases of rape and incest. As a senator in the 1970s, he voted for the controversial ban that critics say hurt low-income women, and last week, he stood by that decision. But after feeling election-season heat, he backed off that stance and said he no longer supports the ban — known as the Hyde Amendment, named for sponsor and then Illinois U.S. Rep. Henry Hyde, a conservative Republican representing the North and West suburbs who was staunchly anti-abortion.