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.

Biden's current role gives him visibility
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Joe Biden (Democrat) -- The vice presidency gives Biden an unrivaled platform to position himself for 2016, but his age (he would be 74 in 2016) and his penchant for the occasional indelicate remark may be big liabilities.

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