The American Civil Liberties Union is challenging a proposed amendment to the Missouri constitution on public prayer.

The measure says that people can pray in public places as long as they aren't disturbing the peace.

It also says that students can express their religious beliefs and that they cannot be forced to participate in assignments that violate those beliefs.

The ACLU argues the summary of the measure is misleading. they say that it doesn't mention that students could refuse to do homework and that prisoners could lose some religious protections.

The lawsuit asks a judge to bar the measure from the ballot or rewrite the summary.