By Gabriella Borter WASHINGTON (Reuters) – Thousands of abortion opponents plan to rally in Washington on Friday for the 50th annual “March for Life,” marking a new chapter for a movement that has organized for decades around overturning Roe v. Wade, the landmark ruling that recognized a women’s right to an abortion. With that goal now accomplished after the U.S. Supreme Court threw out Roe’s precedent and gutted federal abortion rights last June, the leaders of March For Life hope to galvanize support for state and federal legislation placing further limits on abortion. “It’s a moment to stop…