South Carolina’s legislature voted to outlaw abortions for babies who have a heartbeat. Planned Parenthood is challenging that law, and in particular, the abortion giant is challenging its application to babies at 6 to 8 weeks of gestation.

Part of Planned Parenthood’s argument is that babies at six weeks do not have a heartbeat. There are specific legal questions about the wording of the South Carolina law, but one of the least defensible arguments made by abortion defenders is that babies this early in development lack a heartbeat.