Vivvo CMS 4.1 http://www.pri.org/ ©2010 Spoonlabs d.o.o. http://www.pri.org/files.php?file=rss_682409203.gif http://www.pri.org/ http://www.pri.org/stories/politics-society/romney-picks-up-major-endorsement-from-florida-s-sen-marco-rubio.html Politics and Society Thu, 29 Mar 2012 07:59:00 -0500 Marco Rubio, the popular, first-term U.S. Senator from Florida, endorsed Mitt Romney for president in an appearance on a Fox News TV program Wednesday night. It's just the latest endorsement as Romney's candidacy begins to take on an air of invincibility — at least among the Republican candidates. PRI: Public Radio International