Supreme Court

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With the Washington Monument in the background, March for Life supporters gather on the Ellipse in Washington Wednesday Jan. 22, 1997 prior to marching to the Supreme Court to mark the 24th anniversary of the court's decision that legalized abortion. (AP Photo/Ruth Fremson)

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March for Life supporters gather on the Ellipse in Washington Wednesday Jan. 22, 1997 prior to marching to the Supreme Court to mark the 24th anniversary of the court's decision that legalized abortion. (AP Photo/Ruth Fremson)

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Pro-life and pro-choice activists face off in front of the Supreme Court on the anniversary of the Roe v. Wade ruling that legalized abortion nationwide. The March for Life and raging debate have continued for more than 40 years with no end in sight. (Associated Press)

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Strength in numbers: Each year since 1973, thousands of pro-life activists have marched down Pennsylvania Avenue to the Capitol and the Supreme Court to protest Roe v. Wade. They have been joined by other advocates as laws and society change. (Associated Press Photographs)

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Pro-choice demonstrators (left) watch as a group of anti-abortion demonstrators pray on the steps of the Supreme Court when the court heard arguments about a protest-free zone outside Massachusetts abortion clinics. The high court struck down the law in 2014. (Associated Press)

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Eleanor McCullen, who sued the state of Massachusetts for enacting a buffer zone around Planned Parenthood clinics claiming it limits their ability to encounter patients arriving for care, speaks with reporters outside the Supreme Court in Washington, Wednesday, Jan. 15, 2014, after the court heard arguments on a state of Massachusetts law setting a 35-foot (10 meter) protest-free zone outside abortion clinics. (AP Photo/ Evan Vucci)