With widespread power outages, medicine shortages and rising food prices, experts say Cuba’s economy has never been worse, with the crisis coming just as the supply of Venezuelan oil is threatened.

Secretary of State Marco Rubio accused the Cuban government of “propping up” Venezuelan leader Nicolás Maduro, telling NBC’s Kristen Welker that leaders in Cuba were “in a lot of trouble.” Rubio joined Meet the Press to discuss the American military action conducted on Friday night that captured Maduro and his wife.

The secretary of state's latest remarks came after he told reporters that he'd be "concerned" if he were a government official in Havana.

Cuba looks like it’s ready to fall. I don’t know if they’re going to hold out,” Trump told reporters, adding: “Cuba only survives because of Venezuela.”

With his attack on Venezuela, President Trump says the Monroe Doctrine is back, reviving a more than 200-year-old foreign policy idea. In Cuba, residents brace for what that could mean for them.

It comes after Nicolás Maduro and his wife were seized from Caracas and flown to the US. They have since appeared at a New York court.