Castro’s endorsement of the Warsaw Pact's suppression of the Prague Spring in 1968 led to an incremental improvement in Cuba’s relations with the Soviet Union and the Eastern Bloc.
In Florida, Cuban-Americans are a key demographic, and Biden's decision Tuesday is viewed as further hurting political conditions for Democrats in the state.
During his political career, Florida Sen. Marco Rubio has focused his attacks on countries with communist governments and improving relationships with Latin America.