HAVANA, CUBA - FEBRUARY 24: Cubans search their names in lists as they prepare to cast their vote on Cuba's new constitution, against the backdrop of an image of late Revolution leader Fidel Castro, on February 24, 2019, in Havana, Cuba. Cuban officials have carried out a massive campaign to vote for a 'Yes'. The new constitution would limit the presidency to two 5-year terms in a country where Fidel Castro and his brother had been ruling for almost 60 years.(Photo by Sven Creutzmann/Mambo photo/Getty Images)