manuel bojorquez reports from havana. >> reporter: rafael hernandez was 11 when fidel castro seized power in a bloody revolt. >> bullets. explosions. >> you have vivid memories of these. >> exact low. >> for most of his life. a castro has ruled the island. hernandez believes the one party system. fidel built will endure. >> it is different. but it is not -- a break. >> but for 24-year-old, musician, wendy galvez, that's the problem. >> that's fine because we have been like this for 50 years. >> reporter: she has seen what life is like outside cuba. in 2015, she visited chicago as part of a cultural exchange. since then, the trump administration, clamped down on alug tourists from the u.s. to the island. wendy says bookings for her band went from once a week to once a month. >> we are worse. >> the relations seems worse. >> yeah, seems worse.