The backdrop: Felony disenfranchisement laws affect about six million people nationally, but the Sunshine State remains the most stringent, banning more people from voting than any other state.

• Florida is one of four states — Iowa, Virginia and Kentucky — that constitutionally prohibit ex-felons from voting, unless the governor approves a clemency plea. Under Florida's current system, ex-felons have to wait up to seven years before they could petition the Clemency Board, led by Gov. Rick Scott (R) and three other Republican cabinet members.

Yes, but: There’s no principle for a successful petition. In a 2016 clemency hearing, Scott told a petitioner: "There’s no standard. We can do whatever we want," according to ABC News.

• Scott, who has defended the now-former process and is against the ballot measure, said it would make it too easy for undeserving ex-convicts to regain their voting rights.

The big picture: The amendment will shift the makeup of the country’s largest battleground state, which plays a deciding role in presidential elections. Observers say Democrats will largely benefit because the prohibition disproportionately affects African-Americans, a group that overwhelmingly votes Democratic. According to the Sentencing Project, more than 1 in 5 black Floridians are affected.

Go deeper:

• The long voting rights fight for Florida's ex-felons
• Former felons lead the voter restoration movement
• Florida Gov. defends voting rights system for ex-felons after judge's ruling