Who's running and who could run 2016?

Published On: Nov 08 2012 10:41:49 AM CST   Updated On: May 04 2015 10:52:12 AM CDT

Ben Carson announced on May 4 he will seek the Republican nomination for president. Check out other formally announced or potential 2016 candidates.

Marco Rubio
5 / 20
T.J. Kirkpatrick/Getty Images

Marco Rubio (Republican) -- The Florida senator says he is running for president and is "uniquely qualified" to talk about the future, according to CNN.

Upload Photos / Videos