Rob Portman

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Presumptive Republican presidential nominee Mitt Romney (right) is introduced by Sen. Rob Portman, Ohio Republican, at a rally in Charleston, S.C., in January. Mr. Portman’s deep resume fills the “heartbeat-away” requirement for a vice presidential prospect. (Associated Press)

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Sen. Rob Portman of Ohio will be Mitt Romney’s running mate, some taking bets believe. (Associated Press)

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The press is opining that Sen. Rob Portman, Ohio Republican, is a favorite "insider" pick as Mitt Romney's vice presidential running mate. Among his outdoorsy interests, Mr. Portman is an avid hunter, and he bagged a turkey during time off from his House duties last month. (Photo provided by Rob Portman)