Florida continues to lead the nation in the number of new people enrolling in Obamacare health plans during a special enrollment period that began earlier this year, according to data released Wednesday by the federal Centers for Medicare & Medicaid Services. In all, 1.5 million people in 36 states that use a federal health insurance exchange enrolled in plans available under the Affordable Care Act, better known as Obamacare, between Feb. 15 and June 30.