Eliza Collins

USA TODAY

The same day that U.S. airlines launched regularly scheduled flights to Havana, Donald Trump threatened to undo the nascent U.S.-Cuba relationship if certain conditions are not met.

The president-elect's warning comes just days after the death of the country’s former leader, Fidel Castro.

Trump’s position is not new. In a September speech in Miami, Trump denounced President Obama’s deal to reopen ties with Cuba.

In December 2014, President Obama announced that the U.S. had reinstated diplomatic ties with Cuba. In March he became the first U.S. president in more than 50 years to visit the country.

Over the weekend, Reince Priebus, Trump's incoming chief of staff, said the Castro regime would have to “meet our demands" in order for the relationship between the two countries to continue.

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