Some supporters of the so-called fetal heartbeat measure have said they hope to send a message that North Dakota is anti-abortion and aims to challenge the U.S. Supreme Court's 1973 Roe v. Wade ruling that legalized abortion up until a fetus is considered viable, usually at 22 to 24 weeks.
MORE: http://www.cbsnews.com/8301-201_162-57574622/north-dakota-senate-approves-6-week-abortion-ban/
