Rubio says the White House is very focused on toppling the socialist government of Cuba to address what he says are national security risks. He also stressed that Havana will not be able to outwait the Trump administration, urging them to strike a deal before it is too late.

President Donald Trump suggested Thursday he may intervene in Cuba, saying he “would be happy to do it.”

MIAMI — Secretary of State Marco Rubio warned Cuba on Thursday that the United States was laser-focused on changing the communist system, after the...