Here's what to know about the amendment, what a 'yes' or 'no' vote could mean, and what proponents and opponents think of the measure.

How a ballot initiative in Missouri is setting up another red-state test for abortion rights - The Show-Me State and Florida could prove that abortion rights are popular even in ‘Trump country’

Missouri voters will decide on Nov. 5 whether to overturn the state’s abortion ban after the state Supreme Court on Tuesday cleared away a final effort by anti-abortion activists to block a vote on a landmark proposal enshrining a right to abortion in the state constitution.