Missouri residents will have abortion on the ballot after the Missouri Supreme Court ruled Amendment 3 should be included in the November election.

Measures that would protect abortion access are on track to appear on the ballot in 10 states in November, but abortion opponents are engaged in last-ditch legal maneuvering to try to prevent voters from weighing in on the proposals.

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.