By Eugene Robinson

We have reached a phase of the presidential campaign that could be called the Season of Empty Metaphors.

At their convention here, Mitt Romney and the Republicans held serve. Romney may have failed to hit any home runs with his acceptance speech, but he sprayed the outfield with singles and doubles. Sure, his campaign staff left money on the table by allowing Clint Eastwood to waste valuable network airtime conversing with an empty chair. But the convention did more than enough to turbocharge the base and slingshot the GOP candidate into the homestretch.

Now President Obama and the Democrats are off to Charlotte to generate their own set of clichés. It doesn’t take clairvoyance to predict that when the convention is over, some pundit or politicians will pronounce it as having amounted to three yards and a cloud of dust.

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