US-Cuba Pact, threatens to undo Trump.

Donald Trump announced that he would put an end to the pact between the US and Cuba if the Cuban government improves its offer. President Barack Obama has worked to improve relations with the communist country, something that culminated in his historic visit there in March 2016.

But elected president threatened that could end the fragile agreement. Trump message in the "Twitter", the preferred form of communication to, was published while thousands of Cubans do homage to Fidel Castro who passed away on Friday.

"If Cuba is not willing to make a better deal for the Cuban people, the Cuban-Americans and the US in general, I will end the agreement," Trump wrote in "Twitter".

Republican billionaire also promised during the campaign that would end efforts to improve relations with Cuba. A few hours after the death of 90-year-old Fidel Castro, Trump said he was a brutal dictator, although no mention of his campaign promise.