Who's running and who could run in 2016?

Published On: Nov 08 2012 10:41:49 AM CST   Updated On: May 27 2015 10:34:44 AM CDT

Rick Santorum announced his candidacy for the 2016 presidential election on Wednesday. Check out other formally announced or potential 2016 candidates.

Obama and Christie after Hurricane Sandy in NJ
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Scott Olson/Getty Images

Chris Christie (Republican) -- The New Jersey governor turned down pleas to run in 2012. Blunt and sometimes partisan, he's worked effectively with a Democratic legislature and has been praised for his response to Superstorm Sandy.

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