Evidence
The sources themselves, so a conversation doesn't turn into "says who?". Every quote was read at its source, word for word, with the date it was checked. Each topic also says plainly what the evidence settles, what it doesn't, and what the other side argues.
When does a human life begin?
Standard human embryology textbooks agree that a new human organism begins at fertilization. That is when sperm and egg join into a single cell, the zygote, with its own unique genome, which then directs its own development through every later stage. Fertilization takes about a day, not an instant. Whether that new human being is a 'person' with a right to life is a philosophical and moral question, not one biology can settle.
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What develops when: heartbeat, brain, pain, viability
Two clocks are in use: doctors count pregnancy weeks from the last menstrual period (LMP), about two weeks before fertilization; embryology counts from fertilization. The heart tube starts beating about 22 days after fertilization (about 5 weeks LMP) and is seen on ultrasound at about 6-7 weeks LMP; its four chambers form later (by about week 7 after fertilization). The neural tube closes by the end of week 4 after fertilization, and the cortex is built over roughly weeks 12-30 LMP. Whether and when a fetus can feel pain is disputed: the UK's RCOG (2022) says pain before 28 weeks is 'unlikely', while Derbyshire and Bockmann (2020) say it cannot be ruled out from about 12 weeks. Survival outside the womb is now reported from 21-22 weeks LMP with intensive care, and depends heavily on the hospital.
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Real cases that come up in debates
Debates often turn on a few real people: Baby Jax, the most premature babies on record, Adriana Smith and her son Chance, abortion survivors, people conceived in rape, Savita Halappanavar, and the women ProPublica reported died under US abortion bans. Each case is real, and each is often misstated by both sides. Here are the checked facts, what each case shows, and what it doesn't. Use the facts as reported, and concede what the official findings say.
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Roe, Casey and Dobbs: how abortion law got here
In 1973 Roe v. Wade (with its companion Doe v. Bolton) created a constitutional right to abortion and replaced state abortion laws with a trimester framework tied to viability. In 1992 Planned Parenthood v. Casey kept Roe's 'essential holding' and the viability line, dropped the trimesters, and adopted the 'undue burden' test, largely out of respect for precedent. In 2022 Dobbs v. Jackson Women's Health Organization overruled both. In the Court's own terms: 'The Constitution makes no reference to abortion', a right not named in the Constitution must be 'deeply rooted in this Nation's history and tradition', and abortion was a crime in three-quarters of the States when the Fourteenth Amendment was adopted. The Court called Roe 'egregiously wrong from the start' and found that five stare decisis factors weighed in favour of overruling it.
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Babies born alive during abortions
Federal law has said since 2002 that a baby who is born alive at any stage of development, including after an attempted abortion, is a 'person', 'human being', 'child' and 'individual' in every Act of Congress. Killing a born baby is homicide in every state, and in 2013 Philadelphia abortionist Kermit Gosnell was convicted of three counts of first-degree murder for killing babies born alive in his clinic. Live births after abortion are uncommon but documented: CDC death-certificate data identified 143 infant deaths from 2003 to 2014 that definitely involved an induced termination, and said this may be an undercount. Few states require these cases to be reported, so no one has a complete national count.
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The law already treats the unborn as victims
Federal law and most states already treat an unborn child as a separate victim when someone other than the mother kills or injures him. The Unborn Victims of Violence Act of 2004 ('Laci and Conner's Law') makes harming 'a child, who is in utero' during a federal crime a separate offense, at any stage of development. California convicted Scott Peterson of second-degree murder for killing his unborn son Conner. NCSL counted at least 38 states with fetal homicide laws. All of these laws exempt consensual abortion and the mother herself.
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Partial-birth abortion: Stenberg (2000) and Gonzales (2007)
In Stenberg v. Carhart (2000) the Supreme Court, 5-4, struck down Nebraska's ban on 'partial birth abortion' because it had no health exception and its wording also covered the common D&E method. Congress then passed the Partial-Birth Abortion Ban Act of 2003, and in Gonzales v. Carhart (2007) the Court, 5-4, upheld it. Gonzales contains the Supreme Court's own plain description of second-trimester abortion methods, and Justice Ginsburg's dissent is the strongest statement of the other side. The federal ban remains in force.
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The Supreme Court ruled out the death penalty for rape
The Supreme Court has held that the Eighth Amendment forbids the death penalty for raping an adult woman (Coker v. Georgia, 1977) and for raping a child where the crime did not result, and was not intended to result, in the victim's death (Kennedy v. Louisiana, 2008, 5-4). Both rulings rest on the idea that the death penalty is excessive for a crime against an individual in which no life is taken. That is why a pro-life speaker can say: the law will not execute even a rapist, so why should the child conceived in rape die for his father's crime?
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Planned Parenthood and Medicaid: Medina (2025) and the one-year funding bar
Two different things happened in 2025. First, in Medina v. Planned Parenthood South Atlantic (June 26, 2025, 6-3) the Supreme Court held that Medicaid patients cannot sue a state under 42 U.S.C. § 1983 to enforce the Medicaid Act's 'any-qualified-provider' (free-choice-of-provider) provision; this lets states such as South Carolina exclude Planned Parenthood from their own Medicaid programs without facing those lawsuits. Second, Congress's 2025 budget reconciliation law (Pub. L. 119-21, § 71113, signed July 4, 2025) barred federal Medicaid payments for one year to 'prohibited entities' defined to cover Planned Parenthood. Courts let § 71113 take effect, all challenges were dropped, and the one-year bar expired on July 4, 2026 without being extended.
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