The democrats are not about science except when convenient for them.  Science clearly says and has said for decades that he genetic blueprint, the unique DNA, that determines virtually aspect of a human emerges from the process of conception.  This is an inconvenient fact and therefore the science is ignored.  Personally, I recognize that convenience and expediency are the gods of most current Americans and therefore science truly does not matter.  It is convenient and expedient to kill developing babies so that will be the law of the land.