The 2012 election is over, but attention has already turned toward potential 2016 presidential candidates
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Shannon Stapleton/Reuters
Cory Booker (Democrat) -- Newark's heroic mayor is a staple on cable news and the Sunday shows who has parlayed that exposure to build a national profile from the unlikely perch of a big-city mayor. Known for his accessibility and tireless campaigning, he holds degrees from Stanford, Oxford and Yale Law School.