(CNN) - John McCain’s campaign is running a Spanish-language radio ad in Florida aimed at Cuban-American voters.
The 60-second spot, titled "Cuba prisoners," is narrated by Roberto Martin-Perez, a former political prisoner in Cuba who now lives in Miami and serves as the spokesperson for the Association of Cuban Political Prisoners.
In the ad, Martin-Perez calls Raul Castro a dictator "just like his brother" Fidel, who will continue to suppress human rights and freedom of speech on the island.
The spot jabs Barack Obama for his pledge to meet with leaders of hostile countries like Cuba.
"Instead of talking to Raul Castro, John McCain insists that all political prisoners be freed," Martin-Perez says, adding that McCain supports the men and women who "fight for Cuba’s freedom."
"As a former prisoner in Vietnam who saw many cruelties," the narrator says, "John McCain knows that Cuba will not be freed with concessions to the dictatorship."