Marco Antonio Rubio is an American politician and attorney currently serving as the junior United States senator from Florida, a position he has held since January 5, 2011. A member of the Republican Party, Rubio has been an influential figure in Florida politics and has focused on issues such as immigration reform, foreign policy, and economic growth. He gained national prominence during his 2016 presidential campaign, where he emphasized a vision for a strong national defense and a robust economy.