Who's running and who could run 2016?

POSTED: 10:41 AM Nov 08 2012   UPDATED: 11:08 AM Apr 17 2015

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

SC Sen. Lindsey Graham
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Sen. Lindsey Graham carried the night at the South Carolina GOP's annual Silver Elephant Dinner in Columbia on May 1, dropping serious hints about his potential White House bid.