Long before Sen. Barack Obama secured the Democratic presidential nomination, the candidate mused about the first thing he would do as president. At a Planned Parenthood gathering in Washington, D.C., last July, Obama told supporters of America's largest abortion network: "The first thing I'd do as president is sign the Freedom of Choice Act." The purpose of the pro-abortion legislation—first introduced in the Senate in 1989—is clear: "To prohibit, consistent with Roe v. Wade, the interference by the government with a woman's right to choose to bear a child or terminate a pregnancy." The bill has never passed Congress, but...