This field is super deep.
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In numbers it is that for sure.
http://2016.republican-candidates.org/
Skip Andrews DECLARED
Michael Bickelmeyer DECLARED
Kerry Bowers DECLARED
Jeb Bush DECLARED
Dr. Ben Carson DECLARED
Dale Christensen DECLARED
Chris Christie EXPLORING
Ted Cruz DECLARED
Brooks Cullison DECLARED
John Dummett, Jr. DECLARED
Bob Ehrlich
Mark Everson DECLARED
Carly Fiorina DECLARED
Jim Gilmore
Lindsey Graham DECLARED
Chris Hill DECLARED
Mike Huckabee DECLARED
Bobby Jindal EXPLORING
John Kasich
Peter King
Michael Kinlaw DECLARED
Dennis Michael Lynch EXPLORING
George Pataki DECLARED
Rand Paul DECLARED
Rick Perry DECLARED
Michael Petyo DECLARED
Marco Rubio DECLARED
Brian Russell DECLARED
Rick Santorum DECLARED
Rick Snyder
Donald Trump EXPLORING
Scott Walker EXPLORING
8 of the people running I never heard of...
I think the only ones that matter are Bush, Walker, Rubio, Cruz, Huck, Santorum and Paul. Minor roles to Perry & Fiorina, Kasich and Jindal if they run. The winner comes from the first list, with potentially a solid 6-15 percent sticking with each candidate down to the wire. The rest potentially split the vote, with Huck and Santorum peeling off potential Cruz votes, and Fiorina capturing some fire with her awesome rhetoric and quick mind. The rest of the also-rans will either bow out or fizzle out before it matters.