Scott Walker's 2016 dilemmas: Paul Ryan and re-election vs. a chance for the presidency

Rep. Paul Ryan (right) and Wisconsin Gov. Scott Walker are Republicans from the same state who have been mentioned as 2016 presidential candidates. Mr. Walker has said he would not compete against his fellow Wisconsinite in a primary. (associated press)

Rep. Paul Ryan (right) and Wisconsin Gov. Scott Walker are Republicans from the same state who have been mentioned as 2016 presidential candidates. Mr. Walker has said he would not compete against his fellow Wisconsinite in a primary. (associated press)

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