Cuba's best friends in the U.S. used to be a smattering of Washington policy wonks and leftists who sent donated school buses and computers to the communist-led island.

Five months into the Trump administration, Cuba has a new set of American defenders: a coalition of high-tech firms, farming interests, travel companies and young Cuban-Americans thrown into action by the looming announcement of a new Cuba policy. On the opposite side, hard-line members of Miami's Cuban exile community who suddenly have a direct line into the White House through Cuban-American Republican members of Congress and the administration.

President Donald Trump planned to announce the new policy on Friday in Miami but had not yet decided all the details, according to a White House official who spoke on condition of anonymity in order to discuss internal deliberations.