Christian right
The Christian right became more popular again in the 1970s under Falwell due to abortion. This was in response to the Roe v. Wade decision made by the U.S. Supreme Court. Most members of the Christian right feel that life begins at conception. They think that killing a fetus is murder. Therefore, they think abortion should be illegal in most or all cases. This is called being "pro-life". Though the right has not until recently been able to get rid of Roe (and it is now considered to be a precedent by most judges), they have been successful in making it harder to get abortions in some states.