Addressing the conservative conference on Friday, Trump also said the US is fighting against "rogue" states of Iran and North Korea.
Since his election victory, President Trump has taken a new course in relations with Cuba after a thaw that the island nation enjoyed under President Obama. In particular, he rolled back parts of the March 2016 deal between the Obama administration of and the Communist state, imposing business and travel restrictions on Havana.
Venezuela has been turmoil since March when the Venezuelan Supreme Court ruled to restrict the power of the legislature. The decision was canceled, but supporters of the Parliament, who strive for the dismissal of the court members, started protests that eventually led to the deaths of more than 120 people.