what is one of the principles of its communist party?
It entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies.
Introduction
The PCC is a communist party based on democratic centralism, a principle conceived by Russian Marxist Vladimir Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. 
when was the last time a hurricane hit tampa bay area 1921 which areas did it effected? Cuba, Pasco County, Manatee County and Sarasota County. who ruled the first place? Communist Party of Cuba which ethnic groups immigrated here? Afro-Cubans
The PCC is a communist party based on democratic centralism, a principle conceived by Russian Marxist Vladimir Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. Democratic centralism. Democratic centralism.
Communist Party of Cuba Communist Party of Cuba Communist Party of Cuba
Introduction Introduction Introduction
The PCC is a communist party based on democratic centralism, a principle conceived by Russian Marxist Vladimir Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. The highest body within the PCC is the Party Congress, which convened every five years. When the Congress was not in session, the Central Committee was the highest body. Because the Central Committee met twice a year, most day-to-day duties and responsibilities are vested in the Politburo. Since April 2011, the First Secretary of the Central Committee has been Raúl Castro, younger brother of the previous First Secretary Fidel Castro, who died on 25 November 2016. The Second Secretary has been José Ramón Machado Ventura. 
The PCC is a communist party based on democratic centralism, a principle conceived by Russian Marxist Vladimir Lenin,  The PCC is a communist party based on democratic centralism, a principle conceived by Russian Marxist Vladimir Lenin, entails democratic and open discussion of policy issues within the party, followed by the requirement of total unity in upholding the agreed policies. 
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Communist Party of Cuba [SEP] Introduction
The party pursued state socialism, under which all industries were nationalized, and a command economy was implemented throughout Cuba despite the long-term embargo by the United States. The PCC also supports Castroism and Guevarism and is a member of the International Meeting of Communist and Workers' Parties.