Who's running and who could run in 2016?

Published On: Nov 08 2012 10:41:49 AM CST   Updated On: Jul 02 2015 01:56:18 PM CDT

Former Virginia Sen. Jim Webb announced his campaign for president Thursday, becoming the fifth Democrat to join the primary contest. Find out who else is running and who some of the other possible candidates are.

Rick Santorum
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Photo by Alex Wong/Getty Images

Rick Santorum, the former Pennsylvania senator who mounted an unexpectedly strong bid for the Republican nomination in 2012, is making another bid for the White House. Santorum formally launched his campaign May 27 in Pennsylvania.

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