Cuba's President, Miguel Díaz-Canel, has defended Cuba's leadership and refused to accept any changes to its government amid President Donald Trump's pressure campaign against the communist country. In an interview with NBC News' "Meet the Press" moderator Kristen Welker in Havana, he said an invasion to Cuba would have costs and would affect the security of Cuba, the United States, and the region. Dizaz-Cel did not commit to responding to key U.S. demands, including releasing political prisoners, scheduling multiparty elections, and recognizing unions and a free press. He dismissed the notion of political prisoners being held in prison as a "big lie" and a "sins" created to smear the Cuban Revolution.