Montana may become the first state to declare that doctor-assisted suicide is protected under the state constitution.
The so called "right-to-die" issue is going before the state supreme court Tuesday.
Oregon and Washington already allow doctors to prescribe medication to help people kill themselves. Voters approved those laws in statewide referendums.
Churches in the Treasure State have been vocal on both sides of the issue.
One deacon at a liberal Episcopal Church sees it as a matter of choice.
"If we say that God has given everyone free will, that means God has given you the opportunity to do things right and to do things wrong," he told The New York Times.