By David Morgan and David Lawder WASHINGTON (Reuters) – Leading Democratic women called on President Joe Biden and Congress on Sunday to protect abortion rights nationwide after the U.S. Supreme Court overturned Roe v. Wade, in a ruling that has heightened political tensions between the federal government and states. Two Democratic progressives, Senator Elizabeth Warren and Representative Alexandria Ocasio-Cortez, urged Biden to use federal land as a safe haven for abortion in states that ban or severely restrict the practice, after the high court on Friday overturned the landmark 1973 ruling …