havana association cuban businesswomen ask meet republican senator marco rubio florida explain impact country nascent private sector roll back detente u.s. relations rubio cuban-american politician advocate contact policy communist-run island advise president donald trump cuba policy welcome reversal obama administration efforts rapprochement current situation us worry would like share personal histories perspective cuba association represent women small businesses say letter rubio last month entrepreneurs take advantage economic open president raul castro build businesses say take americans visit cuba 2015 wake detente say businesses implode would like rubio bear unite state never cuba visit caribbean island witness impact u.s. policy want invite part team come learn cuba cubans businesses say niuris higueras owner atelier restaurant havana say business 60 percent year ago association say rubio office respond letter would continue seek meet office respond request comment rubio welcome trump announcement june would reverse former president barack obama policies cuba democracy restore say month new restrictions business travel go far enough entrepreneurs say speak much cuba private sector employ 600,000 island 11 million people begin lot cancellations president trump june make statement end obama policy say nidialys acosta run business rent vintage u.s. automobile nastalgicar people say scar uncertain julia de la rosa run 10 room bed breakfast say rentals 20 percent october expect decline new u.s. regulations individual travel kick month new rule limit individual travel make group visit onerous ban americans business patronize 180 cuban military-run businesses products ask anything simply take us opportunity keep work de la rosa say cuban businesswomen seek rubio meet u.s. policy bite