WASHINGTON (Reuters) - Americans on Tuesday marked the 40th anniversary of the Supreme Court decision that legalized abortion, even as battles over the contentious issue have largely shifted from the federal courts to statehouses.

Dozens of protesters braved frigid temperatures to gather in front of the Supreme Court on the anniversary of the landmark January 22, 1973, Roe v. Wade ruling that made abortion legal in the first three months of pregnancy. With a companion ruling, the decision declared abortion a constitutional right.

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