Florida Senator Marco Rubio Endorsed Mitt Romney TOPICS:Florida Senator Marco Rubio Endorsed Mitt Romneygopgop candidategop nomineemarco rubiomarco rubio endorses romneymitt romneynomineerubio endorses romneyrubio romney Posted By: BMartin1776 March 28, 2012 Appearing on Fox News Hannity show, Rubio announced his endorsement of Mitt Romney as the GOP candidate to run against Obama. Romney “Will offer a very clear alternative to a disastrous president”