The 2016 Florida Republican presidential primary was held on March 15, 2016, with 99 delegates being allocated on a winner-take-all basis. Businessman Donald Trump scored a decisive victory in the state, defeating Senator Marco Rubio by nearly 20 points. Rubio had previously vowed to continue his campaign regardless of the results in Florida, but suspended his campaign after the state was called for Trump.

Marco Antonio Rubio is an American politician and lawyer serving as the senior United States senator from Florida, a seat he has held since 2011. A member of the Republican Party, he served as Speaker of the Florida House of Representatives from 2006 to 2008. Rubio unsuccessfully sought the Republican nomination for President of the United States in 2016, but won presidential primaries in Minnesota, the District of Columbia, and Puerto Rico.