Who's running and who could run 2016?

Published On: Nov 08 2012 10:41:49 AM CST   Updated On: Apr 17 2015 11:08:50 AM CDT

South Carolina Sen. Lindsey Graham is weighing a run for president. Check out other formally announced or potential 2016 candidates.

Rand Paul vaccines
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On April 7, Kentucky Republican Sen. Rand Paul formally announced that he will seek the presidency.

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