washington president donald trump friday announce plan tighten rule americans travel cuba significantly restrict u.s. company business cuban enterprises control military senior white house officials say thursday trump lay new cuba policy speech miami roll back part former president barack obama open communist-ruled island 2014 diplomatic breakthrough two former cold war foes take tough approach havana promise presidential campaign trump outline strict enforcement exist ban americans go cuba tourists seek prevent u.s. dollars use fund new u.s. administration see repressive military-dominated government new policy ban u.s. business deal arm force business enterprises group gaesa sprawl conglomerate involve sectors economy make exceptions relate air sea travel officials say essentially shield u.s. airlines cruise line serve island even curb obama détente cuba trump stop short close embassies break diplomatic relations restore 2015 five decades hostility u.s. officials say also leave place tangible measure implement democratic predecessor include resumption direct u.s.-cuba commercial flight though trump restrictive policy seem certain dampen new economic tie overall accord one white house official administration intend disrupt exist business deal one strike obama starwood hotels own marriott international inc manage historic havana hotel also plan reinstate limit obama lift amount island covet rum cigars american bring home personal use one white house official say result change though far-reaching appear less sweep many pro-engagement advocate fear trump justify partial reversal obama measure large extent human right ground aid contend obama ease u.s. restrictions do nothing advance political freedoms cuba benefit cuban government financially say aim repair trump call bad deal strike obama havana one u.s. official say new administration would leave door open improve relations cuba undertake democratic reform allow free fair elections release political prisoners international human right group say however reinstate u.s. policy isolate island could make situation bad empower cuban hardliners cuban government make clear pressure political reform exchange diplomatic engagement home trump critics question administration single cuba human right record insist part world lecture countries issue trump issue presidential memorandum deliver speech manuel artime theater miami little havana district heart america cuban-american cuban exile community venue name leader fail u.s.-backed bay pig invasion cuba 1961 fidel castro revolutionary government republican senator marco rubio play key role push trump change expect attend along u.s. representative mario diaz-balart cuban-american lawmakers trump order treasury commerce departments give 30 days begin write new regulations take effect complete revise travel policy u.s. officials say tight enforcement make sure americans legally fit 12 authorize categories claim travel could spook many visitors wary receive hefty fine tourism cuba ban u.s. law obama administration allow people travel cuba part people people educational trip visitors classification white house official say ripe abuse look beach vacation trump new policy eliminate visit individuals still allow do group tour also retain individual travel authorize categories religious artistic journalistic activities official say trump plan rollback obama policy draw opposition american businesses travel industry begin make inroads island well many lawmakers include trump fellow republicans new policy come together contentious meet within administration aid argue trump former real estate magnate presidency promise unleash u.s. business create job would hard time defend move close cuban market advisers contend important make good promise cuban-americans whose support consider significant win florida 2016 election miami home large cuban-american community trump limit cuba travel restrict business deal military u.s. officials