Originally published on Sun August 12, 2012 12:32 pm
It will be a while before we know if presidential candidate Mitt Romney's pick of Rep. Paul Ryan to join the Republican ticket will be a plus or minus for his campaign.
In my view, not since Jack Kennedy picked Lyndon Johnson has the choice of a running mate truly affected the outcome in November. LBJ did, after all, help bring Texas to the Democratic fold in 1960. But the record for subsequent No. 2s is a bit mixed. Here's my scorecard:
1964
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