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Pro-abortion rights counter protesters hold signs while anti-abortion demonstrators march past the Supreme Court in during the annual March for Life, protesting the Supreme Court’s landmark 1973 decision that declared a constitutional right to abortion, Washington, January 22, 2015 (AP Photo/Jacquelyn Martin)

Pro-abortion rights counter protesters hold signs while anti-abortion demonstrators march past the Supreme Court in during the annual March for Life, protesting the Supreme Court's landmark 1973 decision that declared a constitutional right to abortion, Washington, January 22, 2015 (AP Photo/Jacquelyn Martin)