Pence's advocacy group filed a brief asking the Supreme Court to overturn Roe v. Wade. The Supreme Court agreed in May to hear the case challenging a woman's right to an abortion. Dozens of conservative groups are supporting Mississippi's ban on most abortions after 15 weeks. WASHINGTON – A conservative advocacy group launched by former Vice President Mike Pence is wading into a high-profile abortion case at the Supreme Court, arguing the landmark Roe v. Wade decision has contributed to the destabilization of families. Pence’s group, Advancing American Freedom, is one of dozens of anti-abortion organizations to file briefs in recent days supporting Mississippi’s ban on most abortions after 15 weeks of pregnancy. Nearly 230 GOP lawmakers also filed a brief Thursday, calling on the high court to release Roe's "vise grip on abortion politics."