01/30/2011 05:12 am ET Updated May 25, 2011

John Thune For President? Futures Markets Betting On Senator In 2012

But on two of the three major political exchanges -- markets in which users bet on or buy stocklike futures contracts for candidates they think will win the GOP nomination -- Thune ranks third, behind only Mitt Romney and Sarah Palin. Investors think he's almost twice as likely to win it as the fourth-place contender, former Arkansas Gov. Mike Huckabee.

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