President Joe Biden’s recent pledge to pass and sign a national abortion rights law next year if Democrats hold Congress may look like (and to some extent undoubtedly is) a desperate attempt to turn the tide before the Nov. 8 midterms. Still, for all its lousy timing and ham-handed presentation, it’s a legitimate and necessary move. With most Republicans suddenly being coy about their plans to further restrict reproductive rights going forward, Biden’s announcement aptly lays out exactly what’s at stake in the election. The Supreme Court’s conservative majority suggested in this year’s Roe v. ...