Abortion-rights advocates are seeking to extend their winning streak with ballot measures aimed at amending state constitutions in several states next month. Their success so far, however, may be about to hit a bump in the road in America’s third most populous state.

Along with their choices of candidates for office up and down the ballot, voters in Florida will be asked to consider six amendments to the state constitution. One of those measures, Amendment 4, would allow abortion up to the point of viability and overturn the state’s six-week abortion ban, which is set to go into effect in May.