Prominent voices from Spain's left warned United States President Donald Trump on Tuesday that Cuba will turn bitter for him should he attempt to take the island, as he announced.

Enrique Santiago, parliamentary spokesman for Izquierda Unida (IU), stated flatly that Trump does not know the Cuban people.

"The people of José Martí and Fidel Castro freed themselves not from one, but from two empires," Santiago wrote on his X account in a message directed at the American president.

Santiago, who also serves as secretary general of the Communist Party of Spain (PCE) and sits with the Sumar parliamentary group, extended "full support and solidarity to this brotherly people in the face of the blockade and aggressions by the United States."

The remarks came in response to Trump's comments the previous day, in which he described it as an "honor" to "take Cuba" — a statement that prompted swift and forceful pushback from the Spanish left.

Gerardo Pisarello, first secretary of the Congressional Bureau and member of parliament for Els Comuns, called the American president a "bully and arrogant president" who acts in Cuba as well as in Gaza like a "real estate developer" and a "spoiled rich man."

Pisarello announced that he will join a convoy of activists, parliamentarians, artists, trade unionists, and physicians from various countries traveling to Havana this Saturday to deliver medicine, food, solar batteries, and humanitarian aid to the Caribbean nation's people.

Regarding Trump, Pisarello remarked that the president "is only thinking about whether he can build a resort or a golf course there, and if that means cutting power to hospitals, schools, and dining halls, he will do it."

The lawmaker also noted that Trump "does not know the sons and daughters of the mambises and of José Martí, who led Cuban independence," and accused the White House occupant of targeting Cuba "to hide the fiasco of his criminal war in Iran."

Fellow legislator Alberto Ibañez of Compromís, also part of the Sumar group, condemned the blockade against Cuba as "inhumane and illegal" and recalled that "Fidel Castro's socialism has resisted for more than six decades."