An area of Havana on July 10, 2019. The CIA has secretly established a Cuba task force, setting in motion plans for a more concerted campaign to pressure the Cuban government to make the economic, political and leadership changes demanded by President Trump, according to people briefed on the action. (Todd Heisler/The New York Times) By ADAM ENTOUS The CIA has secretly established a Cuba task force, setting in motion plans for a more concerted campaign to pressure the Cuban government to make…