Nevada Personhood is leading an effort to outlaw "the intentional taking of a prenatal person's life."

The Montana ProLife Coalition is gathering signatures for a ballot measure that would amend the state constitution to define "person" as including "any stage of development."

Voters here rejected a ballot measure to define human life starting "at the beginning of biological development" in 2010 by a 3 to 1 margin. They rejected a similar effort in 2008.

Anti-abortion groups tried to get a personhood measure on the ballot for 2011, but the Attorney General rejected it because the language was "clearly unconstitutional."

Anti-abortion advocates American Life League and Personhood USA have launched an amendment campaign that would grant rights starting at "the beginning of the biological development of that human being."

Measure would amend state constitution to declare that life begins at the point of fertilization.

Oregon Human Life Amendment Committee tried in 2010 to get a measure on the ballot that would guarantee protection for "all human beings … including their unborn offspring at every state of their biological development, including fertilization." Anti-abortion groups are waiting for a court decision from the state Supreme Court before they can proceed with signature gathering.

The group California Civil Rights Foundation is trying to pass an amendment defining a "person" as "all living human beings from beginning of biological development as human organism."

The state's Attorney General rejected an effort to get a personhood measure on the ballot for 2011, but anti-abortion activists in the state will surely try again for 2012. Their measure defines human life as beginning at fertilization.