Secretary of State Marco Rubio speaks to reporters before a Senate briefing on the ongoing conflict with Iran, at the Capitol in Washington, March 3, 2026. Many Cubans in Florida have sought regime change for decades; they fear that President Trump’s talks with Cuba will not lead to wholesale political transformation. (Eric Lee/The New York Times) By PATRICIA MAZZEI The musician Willy Chirino was singing a protest song at a gala hosted by Cuban American lawyers in Miami last month when the...