Abortion-rights groups have never faced a state like Florida

President Joe Biden and Florida Democrats have made a lot of noise about trying to reverse the state’s six-week abortion ban, which went into effect on Wednesday.

But Florida presents a significant — and unusual — hurdle for a ballot referendum that could deal the pro-abortion-rights movement their first electoral loss since the fall of Roe v. Wade.

Abortion rights have been on a winning streak with voters ever since the Supreme Court…