Cuban citizens headed to the polls on Sunday for a referendum that's being viewed as a flash point for the country's thoughts on its single-party, socialist system.
Voters are deciding whether or not to update the country's original 1976 charter that was enacted under Fidel Castro.
The constitutional updates would include protections for private property and the creation of a prime minister role. And, maybe most importantly, they would limit the Cuban presidency to two consecutive five-year terms.
Cuban officials have said the vote will be private and that citizens can respond however they wish without fear of retaliation.
Additional reporting from Newsy affiliate CNN.