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Former Cuban President Fidel Castro was none too thrilled with President Obama visiting his country in March. Castro, who did not attend Obama's meeting with his brother and current president, Raúl, wrote a scathing letter about the visit in state newspaper El Granma. He took issue with Obama's criticism of Cuba, Politico reports.

"Native populations do not exist at all in the mind of Obama," Castro wrote. "Nor does he say that racial discrimination was swept away by the Revolution; that retirement and salary of all Cubans were enacted by this before Mr. Barack Obama was 10 years old."

Castro really didn't hold back the snark in his 1,500-word piece.

"My modest suggestion is to reflect and do not try now to develop theories about Cuban politics," he wrote.